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Thermal Activation And Macroscopic Quantum Phenomena In Superconducting Devices
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Book Synopsis Thermal Activation and Macroscopic Quantum Phenomena in Superconducting Devices by : Fred Sharifi
Download or read book Thermal Activation and Macroscopic Quantum Phenomena in Superconducting Devices written by Fred Sharifi and published by . This book was released on 1989 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is a study of escape from metastable wells in one and two dimensional potentials of superconducting devices. We have measured escape rates due to both thermal activation over the barrier and macroscopic quantum tunneling through the barrier. The measurements were performed for a variety of device parameters, corresponding to different shapes of the potential barrier. We find strong evidence for macroscopic quantum tunneling in both one and two dimensional systems with an escape rate that is very sensitive to the dissipation present in the system. Surprisingly, we have also found a discrepancy between our results and the predictions of Kramers' thermal activation model in certain types of potentials.
Book Synopsis Macroscopic Quantum Phenomena And Coherence In Superconducting Networks by : C Giovannella
Download or read book Macroscopic Quantum Phenomena And Coherence In Superconducting Networks written by C Giovannella and published by World Scientific. This book was released on 1995-11-16 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a review on the recent progresses done in the understanding of the physics of the superconducting arrays. It consists of five sessions:All the topical contributions go well beyond those characteristics of the condensed matter physics and offer links to the domains of the nonlinear science, complex systems and statistical mechanics.
Book Synopsis Thermal Activation of Superconducting Josephson Junctions by : Aditya Prakash Devalapalli
Download or read book Thermal Activation of Superconducting Josephson Junctions written by Aditya Prakash Devalapalli and published by . This book was released on 2007 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconducting quantum circuits (SQCs) are being explored as model systems for scalable quantum computing architectures. Josephson junctions are extensively used in superconducting quantum interference devices (SQUIDs) and in persistent-current qubit systems. Noise excitations, however, have a critical influence on their dynamics. Thus, the primary focus of this research was to investigate the effects of thermal activation on the superconducting properties of Josephson junctions. Specifically, thermal noise tends to result in a range of switching currents, values less than the critical current at which a junction switches from the superconducting to the normal state. First, a general review of superconductivity concepts is given, including a treatment of the Josephson phenomena. Next, I describe some of my work on characterizing the current-voltage traces of Josephson junctions tested at 4 K with a Multi-Chip Probe (MCP). Then, I describe thermal activation theory and examine the equations useful for modeling switching current distributions. The Josephson junctions of a SQUID with a ramped bias current were tested for numerous temperatures T =/
Book Synopsis An Introduction to Macroscopic Quantum Phenomena and Quantum Dissipation by : A. O. Caldeira
Download or read book An Introduction to Macroscopic Quantum Phenomena and Quantum Dissipation written by A. O. Caldeira and published by Cambridge University Press. This book was released on 2014-03-20 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develops the basic material necessary to understand the quantum dynamics of macroscopic variables. Ideal for graduate students and researchers.
Book Synopsis Macroscopic Quantum Coherence and Quantum Computing by : Dmitri V. Averin
Download or read book Macroscopic Quantum Coherence and Quantum Computing written by Dmitri V. Averin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Superconducting Devices and Their Applications by : Hans Koch
Download or read book Superconducting Devices and Their Applications written by Hans Koch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of high-temperature superconductivity considerable progress has been made in research and development of superconductive electronic devices. This fact is reflected by the large variety of contributions to the 4th International Conference on Superconducting and Quantum Effect Devices and their Applications - SQUID'91. This comprehensive proceedings volume covers Josephson junctions, SQUIDs, radiation detectors, flux-flow transitors.. The main applications are contained in the chapters on biomagnetic instrumentation, metrologym and rf-applications. The purpose of this volume is to provide an up-to-date reference book on thestatus of this rapidly changing and promising field of electronic device research on the basis of low- and high-temperature materials.
Book Synopsis Activated Barrier Crossing: Applications In Physics, Chemistry And Biology by : Graham R Fleming
Download or read book Activated Barrier Crossing: Applications In Physics, Chemistry And Biology written by Graham R Fleming and published by World Scientific. This book was released on 1993-12-22 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The passage of a system from one minimum energy state to another via a potential energy barrier provides a model for the microscopic description of a wide range of physical, chemical and biological phenomena. Examples include diffusion of atoms in solids or on surfaces, flux transitions in superconducting quantum interference devices (SQUIDs), isomerization reactions in solution, electron transfer processes, and ligand binding in proteins. In general, both tunneling and thermally activated barrier crossing may be involved in determining the rate. This book surveys key experiments chosen from physics, chemistry and biology, and describes theoretical methods appropriate for both classical and quantum barrier crossing. A major feature of the book is the attempt to integrate the experimental and theoretical work in one volume.
Book Synopsis Introduction to Superconductivity by : Michael Tinkham
Download or read book Introduction to Superconductivity written by Michael Tinkham and published by Courier Corporation. This book was released on 2004-01-01 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well known for its accessibility to graduate students and experimental physicists, this volume emphasizes physical arguments and minimizes theoretical formalism. The second edition of this classic text features revisions by the author that improve its user-friendly qualities, and an introductory survey of latter-day developments in classic superconductivity enhances the volume’s value as a reference for researchers. Starting with a historical overview, the text proceeds with an introduction to the electrodynamics of superconductors and presents expositions of the Bardeen-Cooper-Schrieffer theory and the Ginzburg-Landau theory. Additional subjects include magnetic properties of classic type II superconductors; the Josephson effect (both in terms of basic phenomena and applications and of the phenomena unique to small junctions); fluctuation effects in classic superconductors; the high-temperature superconductors; special topics (such as the Bogoliubov method, magnetic perturbations and gapless superconductivity, and time-dependent Ginzburg-Landau theory); and nonequilibrium superconductivity. 1996 edition.
Book Synopsis Superconductors at the Nanoscale by : Roger Wördenweber
Download or read book Superconductors at the Nanoscale written by Roger Wördenweber and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-09-11 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: By covering theory, design, and fabrication of nanostructured superconducting materials, this monograph is an invaluable resource for research and development. Examples are energy saving solutions, healthcare, and communication technologies. Key ingredients are nanopatterned materials which help to improve the superconducting critical parameters and performance of superconducting devices, and lead to novel functionalities. Contents Tutorial on nanostructured superconductors Imaging vortices in superconductors: from the atomic scale to macroscopic distances Probing vortex dynamics on a single vortex level by scanning ac-susceptibility microscopy STM studies of vortex cores in strongly confined nanoscale superconductors Type-1.5 superconductivity Direct visualization of vortex patterns in superconductors with competing vortex-vortex interactions Vortex dynamics in nanofabricated chemical solution deposition high-temperature superconducting films Artificial pinning sites and their applications Vortices at microwave frequencies Physics and operation of superconducting single-photon devices Josephson and charging effect in mesoscopic superconducting devices NanoSQUIDs: Basics & recent advances Bi2Sr2CaCu2O8 intrinsic Josephson junction stacks as emitters of terahertz radiation| Interference phenomena in superconductor-ferromagnet hybrids Spin-orbit interactions, spin currents, and magnetization dynamics in superconductor/ferromagnet hybrids Superconductor/ferromagnet hybrids
Author :University of Illinois at Urbana-Champaign. Office of Engineering Publications Publisher : ISBN 13 : Total Pages :380 pages Book Rating :4.:/5 (31 download)
Book Synopsis The Summary of Engineering Research by : University of Illinois at Urbana-Champaign. Office of Engineering Publications
Download or read book The Summary of Engineering Research written by University of Illinois at Urbana-Champaign. Office of Engineering Publications and published by . This book was released on 1989 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Symmetry and Heterogeneity in High Temperature Superconductors by : Antonio Bianconi
Download or read book Symmetry and Heterogeneity in High Temperature Superconductors written by Antonio Bianconi and published by Springer Science & Business Media. This book was released on 2006-02-10 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of this book is the quantum mechanism that allows the macroscopic quantum coherence of a superconducting condensate to resist to the attacks of high temperature. Solution to this fundamental problem of modern physics is needed for the design of room temperature superconductors, for controlling the decoherence effects in the quantum computers and for the understanding of a possible role of quantum coherence in living matter that is debated today in quantum biophysics. The recent experimental results on nanoscale phase separation and the two component scenario in high Tc in doped cuprate and the lower symmetry in the superconducting elements at high pressure area presented. The compelling evidence for multiband superconductivity in MgB2 that provides the simplest system for testing the high Tc theories, and plays the same role as atomic hydrogen for the development of the quantum mechanics in the twenties, is one of the main points of the book. The multiband superconductivity enhances the critical temperature from the low Tc range Tc
Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Superconductivity by : Karl-Heinz Bennemann
Download or read book Superconductivity written by Karl-Heinz Bennemann and published by Springer Science & Business Media. This book was released on 2008-04-25 with total page 1568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensive and comprehensive handbook systematically reviews the basic physics, theory and recent advances in superconductivity. Covering the entire field, this unparalleled resource carefully blends theoretical studies with experimental results to provide an indispensable foundation for further research. Leading researchers, including Nobel laureates, describe the state of the art in conventional and unconventional superconductors. In addition to full-coverage of novel materials and underlying mechanisms, the handbook reflects continued, intense research into electron-phone based superconductivity.
Author :Karl-Heinz Bennemann Publisher :Springer Science & Business Media ISBN 13 :9783540438830 Total Pages :990 pages Book Rating :4.4/5 (388 download)
Book Synopsis The Physics of Superconductors by : Karl-Heinz Bennemann
Download or read book The Physics of Superconductors written by Karl-Heinz Bennemann and published by Springer Science & Business Media. This book was released on 2003 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume of a comprehensive two-volume treatise on superconductivity that represents the first such publication since the earlier work by R. Parks. It systematically reviews the basic physics and recent advances in the field. Leading researchers describe the state of the art in conventional phonon-induced superconductivity, high-Tc superconductivity, and novel superconductivity. After an introduction and historical overview, the leaders in the special fields of research give a comprehensive survey of the basics and the state of the art in chapters covering the entire field of superconductivity, including conventional and unconventional superconductors. Important new results are reported in a manner intended to stimulate further research. Numerous illustrations, diagrams and tables make this book especially useful as a reference work for students, teachers, and researchers. The second volume treats novel superconductors.
Book Synopsis Sixth International Conference on Noise in Physical Systems by : Paul Herman Ernst Meijer
Download or read book Sixth International Conference on Noise in Physical Systems written by Paul Herman Ernst Meijer and published by . This book was released on 1981 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploring the Quantum/classical Frontier by : Jonathan R. Friedman
Download or read book Exploring the Quantum/classical Frontier written by Jonathan R. Friedman and published by Nova Publishers. This book was released on 2003 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring the Quantum/Classical Frontier - Recent Advances in Macroscopic Quantum Phenomena
Book Synopsis Principles and Applications of Superconducting Quantum Interference Devices by : Antonio Barone
Download or read book Principles and Applications of Superconducting Quantum Interference Devices written by Antonio Barone and published by World Scientific. This book was released on 1992 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles and applications of SQUIDs serves as a textbook and a multi-author collection of critical reviews. Providing both basic aspects and recent progress in SQUIDs technology, it offers a realistic and stimulating picture of the state of the art. It can also contribute to a further development of the field for commercial applications.
