Relevant bibliographies by topics / Q-bit

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Q-bit'

Author: Grafiati
Published: 10 March 2023
Last updated: 19 July 2025

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Journal articles on the topic "Q-bit"

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Dawes, Joycelin. "The Q-Bit." Journal for the Study of Spirituality 3, no. 2 (2013): 107–22. http://dx.doi.org/10.1179/2044024313z.00000000011.

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Rose, O. "The Q-bit scheme." ACM SIGCOMM Computer Communication Review 22, no. 2 (1992): 29–42. http://dx.doi.org/10.1145/141800.141803.

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Maji, Kajal, and Kousik Mukherjee. "Design and Analysis of X-OR Gate and 4-Bit Binary to 4-Bit Gray and Gray to Binary Code Converter Using Dual Control Dual SOA TOAD (DCDS-TOAD)." Micro and Nanosystems 12, no. 3 (2020): 175–86. http://dx.doi.org/10.2174/1876402912666200123105631.

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Background: In this paper we have design and analyzed 4-bit binary to 4-bit gray code and 4-bit gray to 4-bit gray code converter using dual control dual semiconductor optical amplifier terahertz optical asymmetric demultiplexer (DCDS-TOAD). We used control pulse as a Soliton pulse train. We calculate the extinction ratio, contrast ratio and Q value and found very high values. The high values of E.R., C.R. and Q value distinguishes the high (‘1’) level to the low(‘0’) very clearly also shown the variation of E.R., C.R. and Q value with control pulse energy and amplified spontaneous emission power factor. Methods: The basic equations governing the TOAD performance is simulated using MATLAB. The extinction ratio, contrast ratio and Q value are calculated for analysis of the device. Results: Results of operation for the code converters are performed at a bit rate of 100Gbps. The structure of DCDSTOAD enable us to achieve high values of ER(~ 81dB), CR(~83dB) and Q factor (86dB). A high Q factor shows very low bit error rate (BER). The eye diagram shows a large eye opening (REOP~98.5%). Conclusion: Design and analyzed 4-bit binary to 4-bit gray code and 4-bit gray to 4-bit gray code converter using dual control dual semiconductor optical amplifier terahertz optical asymmetric demultiplexer (DCDS-TOAD) is proposed and analyzed. We used control pulse as a Soliton pulse train. The proposed X-OR gate finds applications in many devices.
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Englert, Berthold-Georg, and Nasser Metwallys. "Separability of entangled q-bit pairs." Journal of Modern Optics 47, no. 12 (2000): 2221–31. http://dx.doi.org/10.1080/09500340008235144.

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Metwally, Berthold-Georg Englert, Nasser. "Separability of entangled q-bit pairs." Journal of Modern Optics 47, no. 12 (2000): 2221–31. http://dx.doi.org/10.1080/095003400420076.

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Englert, B. G., and N. Metwally. "Remarks on 2–q-bit states." Applied Physics B 72, no. 1 (2001): 35–42. http://dx.doi.org/10.1007/s003400000502.

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Sinaga, Jhonatan Andreas. "Design of Point to Point Access Using Dense Wavelength Divison Multiplexing." Brilliance: Research of Artificial Intelligence 2, no. 2 (2022): 38–43. http://dx.doi.org/10.47709/brilliance.v2i2.1534.

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In this research, a point to point access is designed on an optical communication network to see the performance parameters of bit error rate and q-factor. The research was conducted using OptiSystem software version 17, with design specifications such as a wavelength of 1555 nm, a range of 100 km, a number of 40 channels, and a frequency of 100 GHz. In this study, the best BER (Bit Error Rate) value was 10-6. Meanwhile, the Q-factor value is 4.8, which means that the Q-factor value has met the standard if it is seen from the BER value obtained. There are several factors that have a major influence on the design of fiber optic networks, such as power, amplifier specifications and bandwidth values. To minimize the enlargement of the BER (Bit Error Rate) and Q-factor values ??that come out.
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Fikri Fakhrudin, Yusuf, Eka Wahyudi, and Utti Marina Rifanti. "Analisis Pengaruh Penempatan Posisi DCF dan Penggunaan Variasi Nilai Bit Rate pada Sistem DWDM." Jurnal Litek : Jurnal Listrik Telekomunikasi Elektronika 21, no. 1 (2024): 1–9. https://doi.org/10.30811/litek.v21i1.10.

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Dispersi merupakan salah satu masalah yang ada pada komunikasi serat optik jarak jauh Dense Wavelength Division Multiplexing (DWDM). Dispersi dapat menyebabkan beberapa masalah seperti penumpukan sinyal dan informasi. Salah satu cara yang dilakukan dan paling efektif untuk mengkompensasi dispersi adalah menggunakan Dispersion Compensating Fiber (DCF). Selain itu, dalam komunikasi serat optik, penggunaan bit rate juga dapat mempengaruhi cepat lambatnya informasi yang akan disampaikan. Penelitian ini bertujuan untuk membandingkan kinerja rancangan sistem dengan variasi peletakan skema DCF dengan variasi bit rate pada jaringan DWDM 8 kanal dengan jarak sejauh 150 km, dengan parameter yang diamati adalah BER dan Q-Factor. Berdasarkan penelitian ini, diperoleh hasil nilai BER dan Q-Factor terbaik ada pada skema Pre-Compensation dengan nilai BER sebesar 0 pada penggunaan bit rate 2,5 Gbps, dan pada bit rate 5 Gbps, dan nilai Q-Factor sebesar 53,46 pada bit rate 2,5 Gbps. Dari simulasi yang dilakukan, skema Pre dan Post-Compensation pada penggunaan bit rate 2,5 Gbps, nilai BER hanya bernilai 0 pada setiap kanalnya, ini menandakan bahwa tidak ada error yang terjadi ketika penggunaan bit rate tersebut. Oleh karena itu penggunaan skema Pre-Compensation pada penelitian ini memiliki hasil yang terbaik, sementara skema Symmetrical Compensation memiliki hasil yang lebih stabil dibandingkan dengan skema yang lain.
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Fauza Khair, I Wayan Mustika, Anggun Fitrian Isnawati3, and Nur Azizah. "Analysis of Bit Rate and Distance Variation on Multiplexing System of Indoor Li-Fi Technology Using Movable LED Panel." Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 7, no. 2 (2023): 246–53. http://dx.doi.org/10.29207/resti.v7i2.4753.

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The major problem of using light fidelity (Li-Fi) technology is still limited to the line of sight (LOS) conditions, which poses a challenge to perform bandwidth efficiency to support increased bit rates, especially for indoor use. In addition, the distance between the lamp driver (transmitter) and the receiver becomes a critical discussion to determine the characteristics of propagation losses. Therefore, this study focuses on analyzing the performance of an indoor Li-Fi multiplexing system using a movable LED panel (LP) based on parameters of bit rate and distance variation on multiple-input multiple-output (MIMO) 2x2 and 4x4. The parameter analysis of signal quality included optical and electrical signal spectrum characteristics, signal-to-noise ratio (SNR), bit error rate (BER), and Q-factor parameters. Based on the results, the increase in bit rate and distance significantly increases the BER value and decreases the Q-factor value. Both the 2x2 and 4x4 mux systems can meet standards up to a bit rate of 30 Mbps at a LOS distance of 3 meters, while at a bit rate of 40 Mbps, there are no channels that meet the ITU-T standard. In addition, the quality of the signal received at a distance of 4 meters, the 2x2 mux system can only reach the standard at a bit rate of 20 Mbps for all channels. However, channel 3 and channel 4 on the 4x4 mux system model still have the BER and Q-factor values that meet the standard in the bit rate of 30 Mbps. However, the decrease in the SNR value affected by the bit rate increase and distance is insignificant. Therefore, it becomes an opportunity for further observation of the proposed multiplexing system, detection scheme, or responsivity, and signal processing on the receiver side to be reliable on the higher bit rate.
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Piqueira, José R. C. "Bits and q-bits as versatility measures." Anais da Academia Brasileira de Ciências 76, no. 2 (2004): 425–28. http://dx.doi.org/10.1590/s0001-37652004000200035.

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Using Shannon information theory is a common strategy to measure any kind of variability in a signal or phenomenon. Some methods were developed to adapt information entropy measures to bird song data trying to emphasize its versatility aspect. This classical approach, using the concept of bit, produces interesting results. Now, the original idea developed in this paper is to use the quantum information theory and the quantum bit (q-bit) concept in order to provide a more complete vision of the experimental results.
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Dissertations / Theses on the topic "Q-bit"

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Pimentel, Sobrinho Alvaro Caetano. "A contribuição do conceito do bit quântico(q-bit) para os fundamentos teóricos da ciência da informação." Universidade Federal do Rio de Janeiro / Instituto Brasileiro de Informação em Ciência e Tecnologia, 2013. http://ridi.ibict.br/handle/123456789/670.

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Made available in DSpace on 2015-10-19T11:49:43Z (GMT). No. of bitstreams: 1 pimentelsobrinho2013.pdf: 2616020 bytes, checksum: abbcfacc53dbab0dc8ddca2f8ac2b67b (MD5) Previous issue date: 2013-03-27<br>Study about contributions of the concept of quantum bit (q-bit) and analyze the possibilities in quantum computers processing and increase the data storage capacity for devices memory. From the analysis of the q-bit is possible to notice changing in mental and social structures beyond their direct interference in the process of memory as a way of preserving information in different formats. Observations in the contributions from Quantum Mechanics, by measuring process, for Information Science and theoretical-epistemic confluence between the two sciences complemented by some opinions around the issues that still needing answer. Insertion of terms entanglement and superposition that were identified as fundamental to understanding the concept of q-bit is the basis to accept the updates in the concepts, formulations and descriptions established in Information Science<br>Estudo das contribuições do conceito do bit quântico (q-bit) e suas possibilidades de processamento nos computadores quânticos e de aumento da capacidade de armazenamento dos dados em dispositivos de memória. A partir da análise do q-bit, é possível a percepção das alterações de estruturas mentais e sociais, além de sua interferência direta no processo de memória como meio de preservação de informações sob diversos formatos. Observações das contribuições a Mecânica Quântica para a Ciência da Informação e a confluência teórico epistêmica entre as duas ciências, complementadas por algumas ponderações em torno das questões que ainda necessitam de respostas. Inserção dos termos emaranhamento e superposição de estados identificados como fundamentais para o entendimento do conceito de q-bit. Tais termos são a base para dimensionar as alterações em conceitos, formulações e descrições consagrados na Ciência da Informação. Palavras-chave: Bit quântico
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Healey, Joanne E. "Experiments to develop High Q and tunable superconducting coplanar resonators applicable for quantum bit technology." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/1077/.

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Measurements are made on superconducting Niobium on Sapphire and oxidized Silicon microwave coplanar resonators for quantum bit experiments. Device geometry and materials are investigated and quality factors in excess of a million have been observed. The resonant frequency as a function of temperature of a coplanar resonator is characterised in terms of the change in the number density of superconducting electrons. At lower temperatures, the resonant frequency no longer follows this function, and evidence is shown that this is associated with the resonant coupling of the resonant frequency with two level systems in the substrate. At T<2.2 K the resonant frequency scales logarithmically with the temperature, indicating that two level systems distributed in the volume of the Silicon Dioxide affect the electric permittivity. Applying higher input microwave power levels is shown to saturate these two level systems, essentially decoupling them from the CPR resonance. This is observed as an increase in resonant frequency and Q factor. The resonant frequency is also shown to have a high sensitivity to a magnetic field applied perpendicular to the plane of the coplanar resonator, with a quadratic dependence for the fundamental, second and third harmonics. Frequency shift of hundreds of linewidths are obtained. Coplanar resonator are fabricated and measured with current control lines built on chip, and these have shown to produce frequency shifts of tens of Kilohertz.
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Raimondo, Gianluca. "Particle mixing, two level systems and gauge theory." Doctoral thesis, Universita degli studi di Salerno, 2012. http://hdl.handle.net/10556/1304.

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2010 - 2011<br>In this thesis I will discuss the theory of two level systems and the theory of the oscillating particles in quantum eld theory. In the rst chapter I will consider the time evolution of a two level system, a qubit, to show that it has inside a local in time gauge invariant evolution equation. I construct the covariant derivative operator and show that it is related to the free energy. The gauge invariance of the time evolution of the two level system is analogous to the phenomenon of birefringence.I also show that the two level systems present a Berry-like and an Anandan-Aharonov phase. Finally, I discuss entropy environment e ects and the distance in projective Hilbert space between two level states to show that the last one is properly related to the Aharonov - Anandan phase. In the second chapter I review the result obtained in QFT for particle mix- ing, analyzing the theoretical construction and the oscillation formula in the fermion case.I will emphasize the di erences between the quantum mechan- ics formulas and the QFT formulas.The unitary inequivalence between the avor and the mass eigenstates is also shown and the structure of the current for charged elds is nally discussed. I found a non - perturbative vacuum structure for the mixing particles that, among the other things, will lead to a non zero contribution to the value of the cosmological constant (chapter 3). Several links between rst and second chapter will arise from this thesis and will shed the light on the fact that it is possible to construct a generic two level quantum eld theory, that is an extension of the quantum mechanics bit theory in a quantum eld theory framework. [edited by author]<br>X n.s.
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Neto, Domingos Soares. "Filtros para a busca e extração de padrões aproximados em cadeias biológicas." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-19102009-002745/.

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Esta dissertação de mestrado aborda formulações computacionais e algoritmos para a busca e extração de padrões em cadeias biológicas. Em particular, o presente texto concentra-se nos dois problemas a seguir, considerando-os sob as distâncias de Hamming e Levenshtein: a) como determinar os locais nos quais um dado padrão ocorre de modo aproximado em uma cadeia fornecida; b) como extrair padrões que ocorram de modo aproximado em um número significativo de cadeias de um conjunto fornecido. O primeiro problema, para o qual já existem diversos algoritmos polinomiais, tem recebido muita atenção desde a década de 60, e ganhou novos ares com o advento da biologia computacional, nos idos dos anos 80, e com a popularização da Internet e seus mecanismos de busca: ambos os fenômenos trouxeram novos obstáculos a serem superados, em razão do grande volume de dados e das bastante justas restrições de tempo inerentes a essas aplicações. O segundo problema, de surgimento um pouco mais recente, é intrinsicamente desafiador, em razão de sua complexidade computacional, do tamanho das entradas tratadas nas aplicações mais comuns e de sua dificuldade de aproximação. Também é de chamar a atenção o seu grande potencial de aplicação. Neste trabalho são apresentadas formulações adequadas dos problemas abordados, assim como algoritmos e estruturas de dados essenciais ao seu estudo. Em especial, estudamos a extremamente versátil árvore dos sufixos, assim como uma de suas generalizações e sua estrutura irmã: o vetor dos sufixos. Grande parte do texto é dedicada aos filtros baseados em q-gramas para a busca aproximada de padrões e algumas de suas mais recentes variações. Estão cobertos os algoritmos bit-paralelos de Myers e Baeza-Yates-Gonnet para a busca de padrões; os algoritmos de Sagot para a extração de padrões; os algoritmos de filtragem de Ukkonen, Jokinen-Ukkonen, Burkhardt-Kärkkäinen, entre outros.<br>This thesis deals with computational formulations and algorithms for the extraction and search of patterns from biological strings. In particular, the present text focuses on the following problems, both considered under Hamming and Levenshtein distances: 1. How to find the positions where a given pattern approximatelly occurs in a given string; 2. How to extract patterns which approximatelly occurs in a certain number of strings from a given set. The first problem, for which there are many polinomial time algorithms, has been receiving a lot of attention since the 60s and entered a new era of discoveries with the advent of computational biology, in the 80s, and the widespread of the Internet and its search engines: both events brought new challenges to be faced by virtue of the large volume of data usually held by such applications and its time constraints. The second problem, much younger, is very challenging due to its computational complexity, approximation hardness and the size of the input data usually held by the most common applications. This problem is also very interesting due to its potential of application. In this work we show computational formulations, algorithms and data structures for those problems. We cover the bit-parallel algorithms of Myers, Baeza-Yates-Gonnet and the Sagots algorithms for patterns extraction. We also cover here the oustanding versatile suffix tree, its generalised version, and a similar data structure: the suffix array. A significant part of the present work focuses on q-gram based filters designed to solve the approximate pattern search problem. More precisely, we cover the filter algorithms of Ukkonen, Jokinen-Ukkonen and Burkhardt-Kärkkäinen, among others.
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Peloušek, Tomáš. "Simulace zkreslení zvukového signálu v percepčním zvukovém kodéru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442567.

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This thesis deals with the issue of the creation of a programme that would simulate the distortion that appears during the process of lossy audio coding. As the environment for the creation, the MATLAB programming language has been chosen. An encoder, which changes the subjective signal quality according to customer preferences for the bitrate, has been created as a practical part of this thesis. Its function is based on a dynamic bit allocation technique and includes an optional window switching algorithm. The theoretical background for the creation of the programme consists of an explanation of the main principles of lossy coding with emphasis on MPEG1 layer 3 operating principles. The practical chapter describes how the created programme and its parts work, and it includes results of the run quality testing. The testing was conducted using the objective assessment method PEMO-Q, and consisted of comparing the objective quality of the programme’s outputs to the quality of samples on which a regular MP3 encoder with identical settings was used.
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Wang, Hanlin. "The Economic Phenomena of Net Games and of Bit Coins in China." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-193137.

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This paper mainly deals with a special but highly-developing industry in China, net game industry. Due to the significant construction and improvement have been happening at China since 30 years ago, and the influence of traditional culture, population boom or demographic dividend and the invasion of western technologies and cultures, net game industry, which has been only existing for less than 15 years at China, has become one of most profitable industries and changed the living of millions of people. The goal of this essay is to explore the economic performance of networks during last dozen years in China and find the drivers and reasons. By picking up the data between 2001 and 2013, sufficient data and researches will be provided for the study for the network games in China.
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Lundin, Carl. "Rapid transit and property values." Thesis, KTH, Fastigheter och byggande, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146890.

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I denna uppsats görs en fördjupning utbyggnaden av Stockholms tunnelbana till Nacka kommun. Syftet med uppsatsen har varit att undersöka huruvida det uppstår förändringar i fastigheters värde i nära och direkt anslutning till ny- eller utbyggd tunnelbana. Teorikapitlet behandlar olika teorier som beskriver varför vissa typer av fastigheter och verksamheter uppstår på vissa ställen. Teorin tar sats ur von Thünens sätt att förklara markanvändning. Uppsatsen går igenom hur betalningsviljan för mark dels skiljer sig mellan olika verksamheter och dels hur den avtar med avståndet från Central Business District (CBD). Kontor och handel har relativt sett högre betalningsvilja för fastigheter nära CBD än bostäder och bostäder har högre betalningsvilja än industrier. Med ökad tillgänglighet tack vare tunnelbana så uppstår fler unika områden (lokala CBD:s) där kontor och handel har större vilja att etablera sig. Tack vare ökad tillgänglighet och därmed ökat marknadsvärde så kan vi enligt Tobin’s Q förvänta oss ökad exploatering. Vidare analyseras 15 akademiska artiklar på ämnet. De artiklar som legat till grund för att bedöma värdeförändringen har studerat rapid transit system och genomfört analyser på försäljningsdata. Den genomsnittliga ökningen visar på att värdena för fastigheter går upp med 9,6 %. Artiklarna ger också en relevant input om eventuella yttre negativa omständigheter (som dock inte överstiger nyttorna) som uppstår med tunnelbana, till exempel ökad kriminalitet. Deltagarna i enkätundersökningen förväntar sig att alla typer av fastigheter värdemässigt kommer påverkas positivt inom en radie av 1 kilometer. De anser att det till en viss grad finns en marknad för privat medfinansiering samt att medelklassområden är de områden med högst betalningsvilja för tunnelbana.<br>This thesis delves deeply into the expansion of the Stockholm subway to Nacka municipality. The purpose has been to investigate whether there is a change in the valuation of properties in close proximity to new or expanded subway. The theory chapter covers different theories on land use and bid rent curves. The theories are based on von Thünen’s way of describing land use. The thesis goes through how the willingness to pay for land on one hand differs between different property types and on another hand decreases with distance to Central Business District (CBD). Offices and retail have a relatively higher willingness to pay for land in the proximity of CBD than residential and residential have a higher willingness to pay than industrial. With increased availability thanks to subway come numerous unique areas (local CBD’s) where office and retail have a higher willingness to establish. The increased availability also heightens the Tobin’s Q, which means we can expect a higher degree of exploitation. 15 academic papers that cover the issue are analyzed. The articles which are the basis for the reasoning on value change have studied rapid transit systems and conducted analysis on sales data. The average increase in property value of 9,6 %. The articles also gives good input on negative externalities (which however never exceeds the benefits), for example increased criminality. The participants in the survey are expecting that all types of properties will increase in value within a radius of 1 kilometer from the stations. They consider that there is a potential market for private co-financing and that middle-class areas are the ones with highest willingness to pay for subway.
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Amsanpally, Abhilash. "Linear properties of inhibited coupling hollow-core photonic crystal fibers." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0028/document.

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Cette thèse a porté sur les principes de guidage, les propriétés linéaires et les outils de conception autour des fibres à cristal photonique à coeur creux (HC-PCF) à couplage inhibé (IC). Le guidage IC a été démontré comme une manifestation photonique de Q-BiC (état quasi lié dans un continuum) en étudiant des profils asymétriques et dépendants en polarisation dit Fano présentant une bande passante spectrale de 30 GHz. En utilisant le concept de IC, nous reportons la caractérisation linéaire de fibres IC HC-PCF supérieures à l’état de l’art. Par une optimisation de la forme du coeur, une fibre Kagome IC HC-PCF a démontré des pertes très faibles de 8,5 dB/km à 1030 nm associées à une bande passante à 3 dB de 225 nm. Une autre conception avec des entretoises de silice amincies à 300 nm a permis d’atteindre des pertes de 30 dB/km à 780 nm avec une bande de transmission fondamentale record décalée à 670 nm et capable de couvrir toutes les gammes spectrales du Ti:Sa, Yb et Er. Nous avons également travaillé sur la conception et la fabrication de IC HC-PCF présentant une gaine dont la structure est un réseau unique de tubes fins isolés. Une de ces fibres a permis de démontrer une transmission jusqu'à 220 nm avec des pertes records de 7,7 dB/km à ~ 750 nm, tandis qu’une seconde réalisation s’est traduit par une bande fondamentale de plus d’une octave allant de 600 à 1200 nm avec des pertes de 10-20 dB/km. Finalement, cette dernière fibre a été étudiée plus en détail pour déterminer les sources à l’origine des pertes due à la rugosité de surface présente à l’interface du contour du coeur<br>This thesis reported on guiding principles, linear properties and conceptual design tools of inhibited coupling (IC) guiding hollow-core photonic crystal fibers (HC-PCF). IC guidance was proved as photonic manifestation of Q-BiC (quasi bound-state-in-a-continuum) by investigating asymmetric and polarization dependent Fano profiles with bandwidth of 30 GHz in high resolution transmission spectra. By using IC design concept, we reported on linear characterization of state-of-the-art IC HC-PCFs. Based on core shaping optimization, a Kagome IC HC-PCF demonstrated ultra-low loss down to 8.5 km/km at 1030 nm associated with a 225 nm wide 3-dB bandwidth. Another Kagome design with thinner silica struts of 300 nm exhibited lowest loss of 30 dB/km at 780 nm along with record level fundamental bandwidth spreading down to 670 nm and able to cover the entire Ti:Sa, Yb and Er laser spectral ranges. We also reported on design and fabrication of single-ring tubular lattice IC HC-PCFs. One of these fibers demonstrated transmission down to 220 nm with a record transmission loss of 7.7 dB/km at ~750 nm, while the second one exhibited ultra-broad fundamental band with loss range of 10-20 dB/km over one octave spanning from 600 to 1200 nm. Finally, the second tubular fiber was further investigated for fundamental loss sources due to surface roughness around its core-contour
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Fluckinger, Chris D. "Measurement of Big Five Personality via Q-Sort: Comparison with a Likert Measure and Test-Taker Perceptions and Reactions." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1279038683.

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Albuquerque, Rosângela Marques de. "Obtenção de portas lógicas quânticas em condensados de bose-einstein." reponame:Repositório Institucional da UFC, 2017. http://www.repositorio.ufc.br/handle/riufc/27051.

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ALBUQUERQUE, R. M. Obtenção de portas lógicas quânticas em condensados de bose - Einstein. 2017. 77 f. Dissertação (Mestrado em Engenharia Elétrica e da Computação) - Campus de Sobral, Universidade Federal do Ceará, Sobral, 2017.<br>Submitted by Programa de Pós-Graduação Engenharia Elétrica e de Computação (secretaria_ppgeec@sobral.ufc.br) on 2017-10-31T21:38:15Z No. of bitstreams: 1 2016_dis_rmdealbuquerque.pdf: 2544760 bytes, checksum: f4f3c8e0b7dd85d6b593e5bfc7b367eb (MD5)<br>Approved for entry into archive by Djeanne Costa (djeannecosta@gmail.com) on 2017-11-01T12:09:26Z (GMT) No. of bitstreams: 1 2016_dis_rmdealbuquerque.pdf: 2544760 bytes, checksum: f4f3c8e0b7dd85d6b593e5bfc7b367eb (MD5)<br>Made available in DSpace on 2017-11-01T12:09:26Z (GMT). No. of bitstreams: 1 2016_dis_rmdealbuquerque.pdf: 2544760 bytes, checksum: f4f3c8e0b7dd85d6b593e5bfc7b367eb (MD5) Previous issue date: 2017-10<br>Bose-Einstein condensate (BEC) coupled is a promising candidate to quantum computing. Being a macroscopic quantum phenomenon, Being a strong quantum system (BÖIH et al., 2009), its assembly and experimental control inside an atomic chip (HÄNSEL et al.,2001), further the optical networks (GREINER OLAF MANDEL, 2001), where it is found and manipulated in different network sites, assuring implementation conditions of Quantum Information Protocol. The definition of a Qubit in BECs was proposed considering the couple of two BEC’s in different hyperfine states throught a two-photon transition. We have identified each one of the condensates in their respective hyperfine levels like the states and the Qubit. Experimentally, it is possible both the identification of atoms that ate in each one of the hyperfine levels and the measurement of the condensate phase. With these information is possible to determine the superposition coefficients . In this coursework, we have studied the dynamics of two Bose-Einstein condensate (BEC) on its fundamental state, trapped and coupled by a quantum tunneling. Because of this coupling, there is population transference between two condensed modes. The coupling is adjusted in a way we have probability of occupation in two levels. We have shown that this system can be considerate viable to a Qubit. So, we have simulated the quantum gates NOT and Hadamard.<br>Condensados de Bose-Einstein (CBE) acoplados é candidato promissor à computação quântica. Por ser um fenômeno quântico macroscópico, por ser um sistema quântico robusto (BÖHI et al., 2009), por sua montagem e controle experimental dentro de um chip atômico (HÄNSEL et al., 2001), além das construções em redes ópticas (GREINER OLAF MANDEL, 2001), onde são localizados e manipulados em diferentes sítios da rede, garantindo condições de implementação de protocolos de Informação Quântica. A definição de um q-bit em CBEs foi proposta considerando o acoplamento de dois CBEs em diferentes estados hiperfinos através de uma transição de dois fótons. Identificamos cada um dos condensados nos seus respectivos níveis hiperfinos como os estados j0i e j1i do q-bit. Experimentalmente, é possível tanto a identificação dos átomos que estão em cada um dos níveis hiperfinos quanto a medição da fase dos condensados. Com estas informações é possível determinar os coeficientes de superposição a j0i+b j1i. No presente trabalho, estudamos a dinâmica de dois condensados de Bose - Eisntein (CBE) no estado fundamental, armadilhados e acoplados por tunelamento quântico. Devido a esse acoplamento, há transferência de população entre os dois modos condensados. O acoplamento é ajustado de maneira que tenhamos probabilidade de ocupação em dois níveis. Demonstramos que este sistema pode ser considerado viável a um q-bit. Então, simulamos as portas quânticas NOT e Hadamard.
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Books on the topic "Q-bit"

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Limited, Hitachi. Hitachi 8-bit microcomputer technical Q & A HD641180X, HD643180X, HD647180X application note. Hitachi Ltd, 1991.

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Liu, Qizhang, and Mark Goh. TA-Q-BIN. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-673-7.

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Sawant, Nitin, and Himanshu Shah. Big Data Application Architecture Q & A. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0.

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Walters, Lisa M. Romancing the big Q: Dancing with the quality gorilla. Edited by AABB. AABB Press, 2012.

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AABB, ed. Romancing the big Q: Dancing with the quality gorilla. AABB Press, 2012.

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Jamshīd, Jaʻfarʹpūr, ред. Ṭalāq bih darkhvāst-i zan (mavād-i 1029, 1129, 1130 Q. M.), bih darkhvāst-i shawhar (mādah-i 1133 Q. M.). Safīr-i Ṣubḥ, 2001.

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Rūs, Sayyāḥ-i. Guzārish-i Īrān: Bih sāl-i 1305 q. / 1887 m. Kitābkhānah-ʾi Ṭahūrī, 1985.

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International Telegraph and Telephone Consultative Committee. Plenary Assembly. Red book.: Interface with the Maritime Mobile Service and the Land Mobile Service : recommendations Q.1-Q.118 bis. International Telecommunication Union, 1985.

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Ludbrook, Juliet. The big Q: A history of Quairading and its surrounding districts. Shire of Quairading, 2003.

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Akram, Ismāʻīlī, ред. Inḥilāl-i nikāḥ bih vāsṭah-i ʻayb: Mavād-i 1121 tā 1125 Q. M. Safīr-i Ṣubḥ, 2001.

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Book chapters on the topic "Q-bit"

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Yang, Peng, Lijun Liu, Hongbo Fan, and Qingsong Huang. "Fast Multi-Pattern String Matching Algorithms Based on Q-Grams Bit-Parallelism Filter and Hash." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34522-7_52.

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Wen-long, Wei, Li Bin, Zou Yi, and Zhuang Zhen-quan. "Multi-objective Q-bit Coding Genetic Algorithm for Hardware-Software Co-synthesis of Embedded Systems." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11903697_109.

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Starchak, Mikhail R. "On the Existential Arithmetics with Addition and Bitwise Minimum." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30829-1_9.

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AbstractThis paper presents a similar approach for existential first-order characterizations of the languages recognizable by finite automata, by Parikh automata, and by multi-counter machines over the alphabet $$\left\{ 0,1,...,k-1\right\} ^{n}$$ 0 , 1 , . . . , k - 1 n for some $$k\ge 2$$ k ≥ 2 . The set of k-FA-recognizable relations coincides with the set of relations, which are existentially definable in the structure "Image missing" , where "Image missing" corresponds to the bitwise minimum of base k. In order to obtain an existential first-order description of k-Parikh automata languages, we extend this structure with the predicate $$ EqNZB _{k}(x,y)$$ E q N Z B k ( x , y ) which is true if and only if x and y have the same number of non-zero bits in k-ary encoding. Using essentially the same ideas, we encode computations of k-multi-counter machines and thus show that every recursively enumerable relation over the natural numbers is existentially definable in the aforementioned structure supplemented with concatenation $$z=x\smallfrown _{k} y\rightleftharpoons z = x + k^{l_{k}(x)}y$$ z = x ⌢ k y ⇌ z = x + k l k ( x ) y , where $$l_{k}(x)$$ l k ( x ) is the bit-length of x in base k. This result gives us another proof of DPR-theorem.
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Pamula, Vinay Kumar, Srinivasa Rao Vempati, and Anil Kumar Tipparti. "Bit Error Probability of M-Ary PSK with MRC Diversity Reception over Nakagami-m Fading Channel Using Simple Bounds on Gaussian Q -Function." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-25905-0_37.

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Sarkar, Swarup, and Rupsa Roy. "Design and Implementation of Advanced Re-Configurable Quantum-Dot Cellular Automata-Based (Q-DCA) n-Bit Barrel-Shifter Using Multilayer 8:1 MUX with Reversibility." In Proceedings of the International Conference on Paradigms of Computing, Communication and Data Sciences. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8742-7_4.

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Liu, Qizhang, Mark Goh, and Motoka Mouri. "Delivering B2B with TA-Q-BIN." In Management for Professionals. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-673-7_8.

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Hwarng, Brian, and Motoka Mouri. "TA-Q-BIN, The Last-Mile Delivery." In Management for Professionals. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-673-7_3.

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Sawant, Nitin, and Himanshu Shah. "Big Data Introduction." In Big Data Application Architecture Q & A. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_1.

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Sawant, Nitin, and Himanshu Shah. "Big Data Case Studies." In Big Data Application Architecture Q & A. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_10.

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Sawant, Nitin, and Himanshu Shah. "Resources, References, and Tools." In Big Data Application Architecture Q & A. Apress, 2013. http://dx.doi.org/10.1007/978-1-4302-6293-0_11.

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Conference papers on the topic "Q-bit"

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Przepiorowski, Jakub, Vladimir Lenets, Luca Santamaria, et al. "Q/V-Band 1-Bit Reconfigurable Metasurface for 6G Non-Terrestrial Network Applications." In 2024 54th European Microwave Conference (EuMC). IEEE, 2024. http://dx.doi.org/10.23919/eumc61614.2024.10732307.

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Bhowmik, Sujoy, Arkendu Mitra, Subhra Mukherjee, and Kamalika Banerjee. "ZSI, Q-ZSI and SL-QZSI - A Comparative Performance Analysis." In 2024 International BIT Conference (BITCON). IEEE, 2024. https://doi.org/10.1109/bitcon63716.2024.10984474.

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Hamaya, Komei, Yuto Moritake, Taiki Yoda, Masaaki Ono, Eiichi Kuramochi та Masaya Notomi. "Experimental observation of propagation of off-Γ BIC in 1D grating structures". У CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.fm4o.3.

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We directly observed propagation of off-Γ bound states in the continuum (BIC) in gratings in the near-infrared region. Millimeter-scale long propagation and unique self-collimation behavior were observed, which explained by high Q-factor of off-Γ BIC.
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Priyanka, Piyush Dhuliya, Deepak Singh Rana, Sweta Goyal, and Sanjeev Kukreti. "Quantum Computing: bits to Q-bits, Applications, Challenges, Issues and Solutions." In 2024 International Conference on Advances in Computing, Communication and Materials (ICACCM). IEEE, 2024. https://doi.org/10.1109/icaccm61117.2024.11059059.

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Bashiri, Ayesheh, Aleksandr Vaskin, Katsuya Tanaka, et al. "Normal-direction Yellow Laser Emission by Quasi-BIC TiO2 Metasurface." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf3g.6.

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We study the lasing action from rhodamine 6G laser dyes integrated with a quasi-BIC TiO2 metasurface supporting high Q-factor resonances. We experimentally observe low threshold lasing (8 nJ) at 568 nm from the integrated system.
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He, Xiaoyong, and Fangting Lin. "Investigation of Terahertz Tunable High Q-factor BIC Resonance." In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2024. http://dx.doi.org/10.1109/irmmw-thz60956.2024.10697769.

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Hasan, Md Rabiul, Md Aslam Mollah, Md Abu Ismail Siddique, and Rifat Ahmmed Aoni. "High-Q Quasi-BIC Assisted Photonic Crystal Slab Nanotweezers." In 2024 27th International Conference on Computer and Information Technology (ICCIT). IEEE, 2024. https://doi.org/10.1109/iccit64611.2024.11021712.

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Hu, Jun, Tingyang Pan, Chang Li, Bing Duan, Huashun Wen, and Daquan Yang. "Optical fiber communication system based on an ultrahigh-Q packaged fused silica microrod." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sth1q.4.

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We generate a low-threshold Kerr optical frequency comb in the 2.2 × 109 quality factor packaged microrod resonator and implement coherent optical communication with transmission rates of 500 Gb/s and bit error ratios of 10–7.
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Tang, Yiwen, and Hengjun Chen. "High-Q-factor chiral quasi-BIC LiNbO3 metasurface enabling versatile electro-optic modulation." In Nano-optoelectronics and Micro/Nano-photonics X, edited by Shaoliang Yu, Zhiping Zhou, and Kazumi Wada. SPIE, 2024. http://dx.doi.org/10.1117/12.3037397.

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Yang, Ji Tao, Yu-Lu Lei, and Chao-Hai Du. "Q-BIC Enhanced Free Electron Radiation Based on a Double-Period Grating Structure." In 2024 Cross Strait Radio Science and Wireless Technology Conference (CSRSWTC). IEEE, 2024. https://doi.org/10.1109/csrswtc64338.2024.10811499.

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Reports on the topic "Q-bit"

1

Sarabandi, Kamal, Sang-June Park, Mohammed A. El-Tanani, Isak Reines, and Gabriel M. Rebeiz. Low-Loss 4-6 GHz Tunable Filter with 3-Bit High-Q Orthogonal RF-MEMS Capacitance Network. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada481018.

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Martínez Álvarez, Silvia, and Ana Lorena De Varela. Aprendamos todos a leer: Fascículo 20: Toda la familia lee y escribe conmigo. Inter-American Development Bank, 2020. http://dx.doi.org/10.18235/0002991.

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"Aprendamos todos a leer" es la iniciativa para la enseñanza de lectura y escritura inicial del BID, donde a través de materiales para el alumno, el maestro y el aula de clase, pretende brindar herramientas para apoyar el proceso de alfabetización inicial. El programa se organiza a partir de una cartelera fonológica presentando para cada fonema (sonido de letra) un personaje caracterizado por un animal. En respuesta al COVID-19, se desarrollaron fascículos para apoyar el trabajo en casa. Este fascículo contiene orientaciones para enseñar el sonido y escritura de la letra Q-q y su combinación con las vocales, especialmente la A-a, E-e, I-i, O-o y U-u y las consonantes M-m, N-n, L-l, S-s, F-f, T-t, B-b, D-d y C-c.
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