Intrinsic Decoherence In Superconducting Quantum Circuits
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Intrinsic Decoherence In Superconducting Quantum Circuits
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Author : Steffen Schlör
language : en
Publisher:
Release Date : 2020
Intrinsic Decoherence In Superconducting Quantum Circuits written by Steffen Schlör and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Decoherence And Time Resolved Readout In Superconducting Quantum Circuits Dekoh Renz Und Zeitaufgel Sste Quantenmessung In Supraleitenden Schaltkreisen
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Author : Georg M. Reuther
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2011
Decoherence And Time Resolved Readout In Superconducting Quantum Circuits Dekoh Renz Und Zeitaufgel Sste Quantenmessung In Supraleitenden Schaltkreisen written by Georg M. Reuther and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Computers categories.
Superconducting quantum circuits are promising candidates for solid-state based quantum computation. However, minimizing dissipation caused by external noise sources remains a tough challenge. Here, we present an analytic dissipative theory for a complex circuit of two resonators coupled via a flux qubit. In this 'quantum switch', the qubit acts as a tunable coupler between the resonators, which enables switching their interaction on and off. A natural application of this setup is to create entangled two-resonator states. However, it turns out that, even if the qubit has no dynamics, qubit dissipation affects the resonators to a considerable degree. For successful quantum information processing, it is desirable to demonstrate the coherence of qubit time evolution in single-shot experiments without too much backaction on the qubit. In the second part of this thesis, we present a novel scheme for a time-resolved single-run measurement of coherent qubit dynamics. For a charge qubit probed by a weak high-frequency signal, we find that the reflected outgoing signal possesses a time-dependent phase shift that is proportional to a qubit observable. A similar approach is presented for a flux qubit coupled to a resonantly driven high-frequency oscillator, which serves as a meter device for monitoring the time-resolved qubit dynamics.
Applied Superconductivity
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Author : Paul Seidel
language : en
Publisher: John Wiley & Sons
Release Date : 2015-03-23
Applied Superconductivity written by Paul Seidel and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-23 with Technology & Engineering categories.
This wide-ranging presentation of applied superconductivity, from fundamentals and materials right up to the details of many applications, is an essential reference for physicists and engineers in academic research as well as in industry. Readers looking for a comprehensive overview on basic effects related to superconductivity and superconducting materials will expand their knowledge and understanding of both low and high Tc superconductors with respect to their application. Technology, preparation and characterization are covered for bulk, single crystals, thins fi lms as well as electronic devices, wires and tapes. The main benefit of this work lies in its broad coverage of significant applications in magnets, power engineering, electronics, sensors and quantum metrology. The reader will find information on superconducting magnets for diverse applications like particle physics, fusion research, medicine, and biomagnetism as well as materials processing. SQUIDs and their usage in medicine or geophysics are thoroughly covered, as are superconducting radiation and particle detectors, aspects on superconductor digital electronics, leading readers to quantum computing and new devices.
Quantum Information And Quantum Optics With Superconducting Circuits
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Author : Juan José García Ripoll
language : en
Publisher: Cambridge University Press
Release Date : 2022-08-18
Quantum Information And Quantum Optics With Superconducting Circuits written by Juan José García Ripoll and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-18 with Science categories.
Comprehensive introduction to the theory of superconducting circuits and their application in quantum computing and simulation.
Experiments On Flux Qubits With Pi Shifters
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Author : Alexey Feofanov
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-08-20
Experiments On Flux Qubits With Pi Shifters written by Alexey Feofanov and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-20 with Science categories.
The results of the research re-ported in this work show that tunable gap flux qubits have a potential for building quantum registers. Cavities coupled to flux qubits can be used for in-formation storage and transfer between qubits. SFS π-shifters provide a simple approach to bias multi-qubit circuits. A possibility to change the qubit resonance frequency while preserving qubit coherence enables implementation of switchable coupling between qubits and cavities.
Experimental Aspects Of Quantum Computing
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Author : Henry O. Everitt
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-04-03
Experimental Aspects Of Quantum Computing written by Henry O. Everitt and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-04-03 with Science categories.
Practical quantum computing still seems more than a decade away, and researchers have not even identified what the best physical implementation of a quantum bit will be. There is a real need in the scientific literature for a dialogue on the topic of lessons learned and looming roadblocks. This reprint from Quantum Information Processing is dedicated to the experimental aspects of quantum computing and includes articles that 1) highlight the lessons learned over the last 10 years, and 2) outline the challenges over the next 10 years. The special issue includes a series of invited articles that discuss the most promising physical implementations of quantum computing. The invited articles were to draw grand conclusions about the past and speculate about the future, not just report results from the present.
Macroscopic Quantum Coherence And Quantum Computing
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Author : Dmitri V. Averin
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Macroscopic Quantum Coherence And Quantum Computing written by Dmitri V. Averin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.
This volume is an outgrowth of the Second International Workshop on Macroscopic Quantum Coherence and Computing held in Napoli, Italy, in June 2000. This workshop gathered a number of experts from the major Universities and Research Institutions of several countries. The choice of the location, which recognizes the role and the traditions of Naples in this field, guaranteed the participants a stimulating atmosphere. The aim of the workshop has been to report on the recent theoretical and experimental results on the macroscopic quantum coherence of macroscopic systems. Particular attention was devoted to Josephson devices. The correlation with other atomic and molecular systems, exhibiting a macroscopic quantum behaviour, was also discussed. The seminars provided both historical overview and recent theoretical ground on the topic, as well as information on new experimental results relative to the quantum computing area. The first workshop on this topic, held in Napoli in 1998, has been ennobled by important reports on observations of Macroscopic Quantum Coherence in mesoscopic systems. The current workshop proposed, among many stimulating results, the first observations of Macroscopic Quantum Coherence between macroscopically distinct fluxoid states in rf SQUIDs, 20 years after the Leggett's proposal to experimentally test the quantum behavior of macroscopic systems. Reports on observations of quantum behaviour in molecular and magnetic systems, small Josephson devices, quantum dots have also been particularly stimulating in view of the realization of several possible q-bits.
Manipulating Quantum Coherence In Solid State Systems
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Author : Michael E. Flatté
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-30
Manipulating Quantum Coherence In Solid State Systems written by Michael E. Flatté and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-30 with Science categories.
This book features the proceedings of the NATO Advanced Study Institute "Manipulating Quantum Coherence in Solid State Systems", held in Cluj-Napoca, Romania, August 2005, which presented a fundamental introduction to solid-state approaches to achieving quantum computation. This proceedings volume describes the properties of quantum coherence in semiconductor spin-based systems and the behavior of quantum coherence in superconducting systems.
Quantum Entanglement And Information Processing
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Author : Daniel Esteve
language : en
Publisher: Elsevier
Release Date : 2004-12-13
Quantum Entanglement And Information Processing written by Daniel Esteve and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-13 with Computers categories.
Presents the lecture notes of the Les Houches Summer School on Quantum entanglement and information processing. This book aims to establish connections between the communities of quantum optics and of quantum electronic devices working in the area of quantum computing. It is useful for graduate students with a basic knowledge of quantum mechanics.
Quantum Sensing Experiments With Superconducting Qubits
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Author : Schneider, Andre
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-06-04
Quantum Sensing Experiments With Superconducting Qubits written by Schneider, Andre and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-04 with Science categories.
Quantum sensing is a vast and emerging field enabling in-situ studies of quantum systems and hence the development of quantum hybrid systems. This work creates the fundament of direct superconducting-magnetic hybrid systems by developing a local microwave sensing scheme and studying the influence of a static magnetic field on a superconducting qubit. Finally, a proof-of-principle hybrid system is demonstrated, which opens the path towards superconducting-magnetic quantum circuits.