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Artykuły w czasopismach na temat „Radio-Frequency superconducting qubit”

Autor: Grafiati

Data publikacji: 14 września 2024

Data aktualizacji: 31 lipca 2025

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Sprawdź 21 najlepszych artykułów w czasopismach naukowych na temat „Radio-Frequency superconducting qubit”.

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1

Tholén, Mats O., Riccardo Borgani, Giuseppe Ruggero Di Carlo, et al. "Measurement and control of a superconducting quantum processor with a fully integrated radio-frequency system on a chip." Review of Scientific Instruments 93, no. 10 (2022): 104711. http://dx.doi.org/10.1063/5.0101398.

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We describe a digital microwave platform called Presto, designed for measurement and control of multiple quantum bits (qubits) and based on the third-generation radio-frequency system on a chip. Presto uses direct digital synthesis to create signals up to 9 GHz on 16 synchronous output ports, while synchronously analyzing responses on 16 input ports. Presto has 16 DC-bias outputs, four inputs and four outputs for digital triggers or markers, and two continuous-wave outputs for synthesizing frequencies up to 15 GHz. Scaling to a large number of qubits is enabled through deterministic synchroniz

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2

Bashkirov, Eugene K. "Entanglement between two charge qubits taking account the Kerr media." Physics of Wave Processes and Radio Systems 27, no. 1 (2024): 26–34. http://dx.doi.org/10.18469/1810-3189.2024.27.1.26-34.

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Background. The need to implement controlled coupling between qubits, which are the logical elements of quantum devices such as quantum computers and quantum networks, requires, along with the use of traditional methods, the development of new, more effective ways to organize the interaction of qubits with the microwave fields of resonators used to generate and control the entanglement of qubits. As one of these methods, a method based on the influence of frequency-regulated radio frequency signals on a superconducting Josephson qubit connected by a large Josephson junction to a free qubit has

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3

Xu, Yilun, Gang Huang, David I. Santiago, and Irfan Siddiqi. "Radio frequency mixing modules for superconducting qubit room temperature control systems." Review of Scientific Instruments 92, no. 7 (2021): 075108. http://dx.doi.org/10.1063/5.0055906.

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4

Park, Kun Hee, Yung Szen Yap, Yuanzheng Paul Tan, et al. "ICARUS-Q: Integrated control and readout unit for scalable quantum processors." Review of Scientific Instruments 93, no. 10 (2022): 104704. http://dx.doi.org/10.1063/5.0081232.

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We present a control and measurement setup for superconducting qubits based on the Xilinx 16-channel radio-frequency system-on-chip (RFSoC) device. The proposed setup consists of four parts: multiple RFSoC boards, a setup to synchronize every digital to analog converter (DAC) and analog to digital converter (ADC) channel across multiple boards, a low-noise direct current supply for tuning the qubit frequency, and cloud access for remotely performing experiments. We also designed the setup to be free of physical mixers. The RFSoC boards directly generate microwave pulses using sixteen DAC chann

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5

Gely, Mario F., Marios Kounalakis, Christian Dickel, et al. "Observation and stabilization of photonic Fock states in a hot radio-frequency resonator." Science 363, no. 6431 (2019): 1072–75. http://dx.doi.org/10.1126/science.aaw3101.

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Detecting weak radio-frequency electromagnetic fields plays a crucial role in a wide range of fields, from radio astronomy to nuclear magnetic resonance imaging. In quantum optics, the ultimate limit of a weak field is a single photon. Detecting and manipulating single photons at megahertz frequencies presents a challenge because, even at cryogenic temperatures, thermal fluctuations are appreciable. Using a gigahertz superconducting qubit, we observed the quantization of a megahertz radio-frequency resonator, cooled it to the ground state, and stabilized Fock states. Releasing the resonator fr

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6

Kalboussi, Yasmine, Benjamin Delatte, S. Bira, et al. "Reducing two-level systems dissipations in 3D superconducting niobium resonators by atomic layer deposition and high temperature heat treatment." Applied Physics Letters 124, no. 2024 (2024): 134001. https://doi.org/10.1063/5.0202214.

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Superconducting qubits have arisen as a leading technology platform for quantum computing, which is on the verge of revolutionizing theworld’s calculation capacities. Nonetheless, the fabrication of computationally reliable qubit circuits requires increasing the quantumcoherence lifetimes, which are predominantly limited by the dissipations of two-level system defects present in the thin superconducting filmand the adjacent dielectric regions. In this paper, we demonstrate the reduction of two-level system losses in three-dimensional superconduct-ing radio frequency niobium resonators by

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7

Riera Aroche, Raul, Yveth M. Ortiz García, Esli C. Sánchez Moreno, José S. Enriquez Cervantes, Andrea C. Machado Sulbaran, and Annie Riera Leal. "DNA Gene’s Basic Structure as a Nonperturbative Circuit Quantum Electrodynamics: Is RNA Polymerase II the Quantum Bus of Transcription?" Current Issues in Molecular Biology 46, no. 11 (2024): 12152–73. http://dx.doi.org/10.3390/cimb46110721.

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Previously, we described that Adenine, Thymine, Cytosine, and Guanine nucleobases were superconductors in a quantum superposition of phases on each side of the central hydrogen bond acting as a Josephson Junction. Genomic DNA has two strands wrapped helically around one another, but during transcription, they are separated by the RNA polymerase II to form a molecular condensate called the transcription bubble. Successive steps involve the bubble translocation along the gene body. This work aims to modulate DNA as a combination of n-nonperturbative circuits quantum electrodynamics with nine Rad

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8

Park, Joong-Mok, Zhi Xiang Chong, Richard H. J. Kim, et al. "Probing Non-Equilibrium Pair-Breaking and Quasiparticle Dynamics in Nb Superconducting Resonators Under Magnetic Fields." Materials 18, no. 3 (2025): 569. https://doi.org/10.3390/ma18030569.

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We conducted a comprehensive study of the non-equilibrium dynamics of Cooper pair breaking, quasiparticle (QP) generation, and relaxation in niobium (Nb) cut from superconducting radio-frequency (SRF) cavities, as well as various Nb resonator films from transmon qubits. Using ultrafast pump–probe spectroscopy, we were able to isolate the superconducting coherence and pair-breaking responses. Our results reveal both similarities and notable differences in the temperature- and magnetic-field-dependent dynamics of the SRF cavity and thin-film resonator samples. Moreover, femtosecond-resolved QP g

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9

THOMAS, Candice, Jean-Philippe Michel, Edouard Deschaseaux, et al. "Superconducting routing platform for large-scale integration of quantum technologies." Materials for Quantum Technology, August 10, 2022. http://dx.doi.org/10.1088/2633-4356/ac88ae.

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Abstract To reach large-scale quantum computing, three-dimensional integration of scalable qubit arrays and their control electronics in multi-chip assemblies is promising. Within these assemblies, the use of superconducting interconnections, as routing layers, offers interesting perspective in terms of (1) thermal management to protect the qubits from control electronics self-heating, (2) passive device performance with significant increase of quality factors and (3) density rise of low and high frequency signals thanks to minimal dispersion. We report on the fabrication, using 200 mm silicon

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10

Kounalakis, Marios, Yaroslav M. Blanter, and Gary A. Steele. "Synthesizing multi-phonon quantum superposition states using flux-mediated three-body interactions with superconducting qubits." npj Quantum Information 5, no. 1 (2019). http://dx.doi.org/10.1038/s41534-019-0219-y.

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AbstractMassive mechanical resonators operating at the quantum scale can enable a large variety of applications in quantum technologies as well as fundamental tests of quantum theory. Of crucial importance in that direction is both their integrability into state-of-the-art quantum platforms as well as the ability to prepare them in generic quantum states using well-controlled high-fidelity operations. Here, we propose a scheme for controlling a radio-frequency mechanical resonator at the quantum scale using two superconducting transmon qubits that can be integrated on the same chip. Specifical

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11

Kelly, Eoin G., Alexei Orekhov, Nico W. Hendrickx, et al. "Capacitive crosstalk in gate-based dispersive sensing of spin qubits." Applied Physics Letters 123, no. 26 (2023). http://dx.doi.org/10.1063/5.0177857.

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In gate-based dispersive sensing, the response of a resonator attached to a quantum dot gate is detected by a reflected radio frequency signal. This enables fast readout of spin qubits and tune up of arrays of quantum dots but comes at the expense of increased susceptibility to crosstalk, as the resonator can amplify spurious signals and induce fluctuations in the quantum dot potential. We attach tank circuits with superconducting NbN inductors and internal quality factors Qi&gt;1000 to the interdot barrier gate of silicon double quantum dot devices. Measuring the interdot transition in tr

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12

Dijck, Elwin A., Christian Warnecke, Malte Wehrheim, et al. "Sympathetically cooled highly charged ions in a radio-frequency trap with superconducting magnetic shielding." Review of Scientific Instruments 94, no. 8 (2023). http://dx.doi.org/10.1063/5.0160537.

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We sympathetically cool highly charged ions (HCI) in Coulomb crystals of Doppler-cooled Be+ ions confined in a cryogenic linear Paul trap that is integrated into a fully enclosing radio-frequency resonator manufactured from superconducting niobium. By preparing a single Be+ cooling ion and a single HCI, quantum logic spectroscopy toward frequency metrology and qubit operations with a great variety of species are enabled. While cooling down the assembly through its transition temperature into the superconducting state, an applied quantization magnetic field becomes persistent, and the trap beco

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13

Eggli, Rafael S., Taras Patlatiuk, Eoin G. Kelly, et al. "Coupling a high-Q resonator to a spin qubit with all-electrical control." Physical Review Research 7, no. 1 (2025). https://doi.org/10.1103/physrevresearch.7.013197.

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Building a practical quantum processor involves integrating millions of physical qubits along with the necessary components for individual qubit manipulation and readout. Arrays of gated silicon spins offer a promising route toward achieving this goal. Optimized radio frequency resonators with high internal quality factor are based on superconducting inductors and enable fast spin readout. All-electrical spin control and gate-dispersive readout remove the need for additional device components and simplify scaling. However, superconducting high-Q tank circuits are susceptible to crosstalk-induc

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14

Kalboussi, Y., B. Delatte, S. Bira, et al. "Reducing two-level systems dissipations in 3D superconducting niobium resonators by atomic layer deposition and high temperature heat treatment." Applied Physics Letters 124, no. 13 (2024). http://dx.doi.org/10.1063/5.0202214.

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Superconducting qubits have arisen as a leading technology platform for quantum computing, which is on the verge of revolutionizing the world's calculation capacities. Nonetheless, the fabrication of computationally reliable qubit circuits requires increasing the quantum coherence lifetimes, which are predominantly limited by the dissipations of two-level system defects present in the thin superconducting film and the adjacent dielectric regions. In this paper, we demonstrate the reduction of two-level system losses in three-dimensional superconducting radio frequency niobium resonators by ato

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15

Wang, Changqing, Ivan Gonin, Anna Grassellino, et al. "High-efficiency microwave-optical quantum transduction based on a cavity electro-optic superconducting system with long coherence time." npj Quantum Information 8, no. 1 (2022). http://dx.doi.org/10.1038/s41534-022-00664-7.

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AbstractFrequency conversion between microwave and optical photons is a key enabling technology to create links between superconducting quantum processors and to realize distributed quantum networks. We propose a microwave-optical transduction platform based on long-coherence time superconducting radio-frequency (SRF) cavities coupled to electro-optic optical cavities to mitigate the loss mechanisms that limit the attainment of high conversion efficiency. We optimize the microwave-optical field overlap and optical coupling losses in the design while achieving long microwave and optical photon

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16

Kalboussi, Y., I. Curci, F. Miserque, et al. "Crystallinity in niobium oxides: A pathway to mitigate two-level-system defects in niobium three-dimensional resonators for quantum applications." Physical Review Applied 23, no. 4 (2025). https://doi.org/10.1103/physrevapplied.23.044023.

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Materials imperfections in Nb-based superconducting quantum circuits—in particular, two-level-system (TLS) defects—are a major source of decoherence, ultimately limiting the performance of quantum computation and sensing. Thus, identifying and understanding the microscopic origin of possible TLS defects in these devices will help develop strategies that eliminate them, which are key to superconducting qubit performance improvement. In this paper, we demonstrate an order-of-magnitude reduction in two-level system losses in three-dimensional superconducting radio frequency (SRF) niobium resonato

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17

Hampel, Benedikt, Daniel H. Slichter, Dietrich Leibfried, Richard P. Mirin, Sae Woo Nam, and Varun B. Verma. "Trap-integrated superconducting nanowire single-photon detectors with improved rf tolerance for trapped-ion qubit state readout." Applied Physics Letters 122, no. 17 (2023). http://dx.doi.org/10.1063/5.0145077.

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State readout of trapped-ion qubits with trap-integrated detectors can address important challenges for scalable quantum computing, but the strong radio frequency (rf) electric fields used for trapping can impact detector performance. Here, we report on NbTiN superconducting nanowire single-photon detectors (SNSPDs) employing grounded aluminum mirrors as electrical shielding that are integrated into linear surface-electrode rf ion traps. The shielded SNSPDs can be operated at applied rf trapping potentials of up to 54 V peak at 70 MHz and temperatures of up to 6 K, with a maximum system detect

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18

Yang, Ming, XiaoLiang He, WanPeng Gao, et al. "Kinetic inductance compact resonator with NbTiN micronwires." AIP Advances 14, no. 8 (2024). http://dx.doi.org/10.1063/5.0220296.

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Nonlinear resonators of superconducting thin-film kinetic inductance have attracted considerable research interest in the fields of detectors, qubits, parametric amplifiers, and more. By tuning the deposition parameters, niobium titanium nitride (NbTiN) films (∼12 nm in thickness) present high resistivity(∼2000 μΩ cm) and large sheet kinetic inductance (∼0.7 nH/□). We designed resonators with NbTiN micronwire as the inductor and aluminum as the capacitor, which result in a high internal quality factor and a Kerr nonlinearity of a few hertz. The radio frequency response of the resonators demons

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19

Vigneau, Florian, Federico Fedele, Anasua Chatterjee, et al. "Probing quantum devices with radio-frequency reflectometry." Applied Physics Reviews 10, no. 2 (2023). http://dx.doi.org/10.1063/5.0088229.

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Many important phenomena in quantum devices are dynamic, meaning that they cannot be studied using time-averaged measurements alone. Experiments that measure such transient effects are collectively known as fast readout. One of the most useful techniques in fast electrical readout is radio-frequency reflectometry, which can measure changes in impedance (both resistive and reactive) even when their duration is extremely short, down to a microsecond or less. Examples of reflectometry experiments, some of which have been realized and others so far only proposed, include projective measurements of

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20

Ghimire, Sunil, Kamal R. Joshi, Amlan Datta, et al. "Quasiparticle spectroscopy in technologically relevant niobium using London penetration depth measurements: experiment and theory." Materials for Quantum Technology, October 28, 2024. http://dx.doi.org/10.1088/2633-4356/ad8c0c.

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Abstract The London penetration depth, $\lambda(T)$, was measured in various forms of niobium, including foils, thin films, single crystals, and samples from superconducting radio-frequency (SRF) cavities. We observed a significant difference in $\lambda(T)$ at low temperatures, $T < T_{c}/3$), due to low-energy quasiparticles. In particular, an unusual downturn of $\lambda(T)$ on cooling in the SRF cavity samples required to take into account deep in-gap bound states. Theoretical modeling using the generalized Dynes density of states shows that such in-gap states lead to a downturn or a pe

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21

Stanley, Manoj, Xiaobang Shang, Murat Celep, et al. "RF and microwave metrology for quantum computing – recent developments at the UK’s National Physical Laboratory." International Journal of Microwave and Wireless Technologies, April 25, 2024, 1–9. http://dx.doi.org/10.1017/s1759078724000369.

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Abstract Development of large-scale quantum computing systems will require radio frequency (RF) and microwave technologies operating reliably at cryogenic temperatures down to tens of milli-Kelvin (mK). The quantum bits in the most promising quantum computing technologies such as the superconducting quantum computing are designed using principles of microwave engineering and operated using microwave signals. The control, readout, and coupling of qubits are implemented using a network of microwave components operating at various temperature stages. To ensure reliable operation of quantum comput

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