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Relevant bibliographies by topics / MOLECULAR QUANTUM-DOT CELLULAR AUTOMATA (QCA) / Dissertations / Theses

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Dissertations / Theses on the topic 'MOLECULAR QUANTUM-DOT CELLULAR AUTOMATA (QCA)'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

WANG, RUIYU. "ANALYSIS AND MODULATION OF MOLECULAR QUANTUM-DOT CELLULAR AUTOMATA (QCA) DEVICES." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2677716.

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Field-Coupled nanocomputing (FCN) paradigms offer fundamentally new approaches for digital computing without involving current transistors. Such paradigms perform computations using local field interactions between nanoscale building blocks which are organized with purposes. Among several FCN paradigms currently under active investigation, the Molecular Quantum-dot Cellular Automata (MQCA) is found to be the most promising and its unique features make it attractive as a candidate for post-CMOS nanocomputing. MQCA is based on electrostatic interactions among quantum cells with nanometer scale e

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PULIMENO, AZZURRA. "Molecular Quantum-dot Cellular Automata (QCA): Characterization of the bis-ferrocene molecule as a QCA device." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2507365.

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Quantum-dot cellular automata is an emerging technology for digital computation that follows the More than Moore trends and aims to the simultaneous reduction of both device size and power consumption. In particular, the basic QCA device is a cell made of dots and in which a bunch of free charges are allowed to move without leaving the cell itself. Depending on which dots the free charges occupy inside the cell (called also charge localization inside the cell) the binary information could be encoded and the interaction between nearby cells is performed by the electrostatic interaction. This me

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3

Santana, Bonilla Alejandro, Rafael Gutierrez, Sandonas Leonardo Medrano, Daijiro Nozaki, Alessandro Paolo Bramanti, and Gianaurelio Cuniberti. "Structural distortions in molecular-based quantum cellular automata: a minimal model based study." Royal Society of Chemistry, 2014. https://tud.qucosa.de/id/qucosa%3A36371.

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Molecular-based quantum cellular automata (m-QCA), as an extension of quantum-dot QCAs, offer a novel alternative in which binary information can be encoded in the molecular charge configuration of a cell and propagated via nearest-neighbor Coulombic cell–cell interactions. Appropriate functionality of m-QCAs involves a complex relationship between quantum mechanical effects, such as electron transfer processes within the molecular building blocks, and electrostatic interactions between cells. The influence of structural distortions of single m-QCA are addressed in this paper within a minimal

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4

Srivastava, Saket. "Probabilistic modeling of quantum-dot cellular automata." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002399.

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5

Singhal, Rahul. "Logic Realization Using Regular Structures in Quantum-Dot Cellular Automata (QCA)." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/196.

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Semiconductor industry seems to approach a wall where physical geometry and power density issues could possibly render the device fabrication infeasible. Quantum-dot Cellular Automata (QCA) is a new nanotechnology that claims to offer the potential of manufacturing even denser integrated circuits, which can operate at high frequencies and low power consumption. In QCA technology, the signal propagation occurs as a result of electrostatic interaction among the electrons as opposed to flow to the electrons in a wire. The basic building block of QCA technology is a QCA cell which encodes binary i

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Venkataramani, Praveen. "Sequential quantum dot cellular automata design and analysis using Dynamic Bayesian Networks." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002787.

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7

Anduwan, Gabriel A. Y. "The thermal effect and fault tolerance on nanoscale devices : the quantum dot cellular automata (QCA)." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1369913.

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The defects and fault tolerance study is essential in the QCA devices in order to know its characteristics. Knowing the characteristics, one can understand the flow of information in a QCA system with and without manufacturing and operational defects. The manufacturing defects could be at device level or cell level. At the device level, the cell could be rotated, displaced vertically or horizontally, the cell could be missing or the size of the cell could be different. At the cell level, there could be a missing dot, dot could be displaced from its position or the size of the dots could be dif

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Raviraj, Tejas. "Design, Implementation, and Test of Next Generation FPGAs Using Quantum-Dot Cellular Automata Technology." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1302291185.

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9

Karim, Faizal. "Clocking electrode design and phase analysis for molecular quantum-dot cellular automata based circuits." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31504.

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Molecular quantum-dot cellular automaton (QCA) offers an alternative paradigm for computing at the nano-scale. Such Q C A circuits require an external clock, which can be generated using a network of submerged electrodes, to synchronize information flow, and provide the required power to drive the computation. In this thesis, the effect of electrode separation and applied potential on the likelihood of different Q C A cell states of molecular cells located above and in between two adjacent electrodes is analysed. Using this analysis, estimates of operational ranges are developed for the

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10

Jin, Zengxiao. "Fabrication and measurement of molecular quantum cellular automata (QCA) device." 2006. http://etd.nd.edu/ETD-db/theses/available/etd-06292006-143025/.

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Thesis (M.S.E.E.)--University of Notre Dame, 2006.<br>Thesis directed by Gregory L. Snider for the Department of Electrical Engineering. "June 2006." Includes bibliographical references (leaves 64-65).

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11

Isaksen, Beth Claire. "Molecular quantum-dot cellular automata." 2003. http://etd.nd.edu/ETD-db/theses/available/etd-07012003-121454/.

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12

賴建丞. "Minimum-Crossing Layout Synthesis for Quantum-Dot Cellular Automata (QCA)." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/43253686911218981810.

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碩士<br>國立交通大學<br>資訊科學系所<br>94<br>Quantum-dot cellular automata (QCA) is a novel nano-scale computing mechanism that can represent binary information based on spatial distribution of electron charge configuration in molecules. A QCA physical synthesis flow consists of four stages: partitioning, placement, pin-assignment and channel routing. Because wire crossings in QCA layout increase the complexity of circuit layout design, this work focus on minimizing wire crossings of the circuit under synthesis. In this paper, the problem of QCA placement is mapped to a famous problem “k-layer bigraph cro

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13

Beard, Mary Jean. "Design and simulation of fault-tolerant Quantum-dot Cellular Automata (QCA) NOT gates." Thesis, 2006. http://hdl.handle.net/10057/561.

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This paper details the design and simulation of a fault-tolerant Quantum-dot Cellular Automata (QCA) NOT gate. A version of the standard NOT gate can be constructed to take advantage to the ability to easily integrate redundant structures into a QCA design. The fault-tolerant characteristics of this inverter are analyzed with QCADesigner v2.0.3 (Windows version) simulation software. These characteristics are then compared with the characteristics of two other non-redundant styles of NOT gates. The redundant version of the gate is more robust than the standard style for the inverter. However, a

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14

Chilakam, Madhusudan. "A Novel Reconfiguration Scheme in Quantum-Dot Cellular Automata for Energy Efficient Nanocomputing." 2013. https://scholarworks.umass.edu/theses/1028.

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Quantum-Dot Cellular Automata (QCA) is currently being investigated as an alternative to CMOS technology. There has been extensive study on a wide range of circuits from simple logical circuits such as adders to complex circuits such as 4-bit processors. At the same time, little if any work has been done in considering the possibility of reconfiguration to reduce power in QCA devices. This work presents one of the first such efforts when considering reconfigurable QCA architectures which are expected to be both robust and power efficient. We present a new reconfiguration scheme which is highly

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15

Sultana, Sayeeda. "A design for testability scheme for modular and non-modular quantum dot cellular automata (QCA) employing stuck-at fault model." Thesis, 2006. http://spectrum.library.concordia.ca/9091/1/MR20755.pdf.

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Today leading VLSI experts predict a hard wall for CMOS and other conventional fabrication technology due to fundamental physical limits (ultra-thin gate oxide, short channel effects, doping fluctuations, etc.), and increasingly difficult and expensive lithography in nanoscale. Extensive research conducted in recent years at nanoscale aiming to surpass CMOS has proposed Quantum Dot Cellular Automata as a viable alternative for nanoscale computing. Quantum Dot Cellular Automata (QCA) paradigm is an innovatory approach to computing, which encodes binary information by means of charge configurat

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