Quantum Measurement Approach To Tunnelling
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Author | : Dilip Kumar Roy |
Publisher | : World Scientific |
Total Pages | : 129 |
Release | : 1993-06-17 |
Genre | : Science |
ISBN | : 9814505056 |
Download Quantum Measurement Approach To Tunnelling, A: Tunnelling By Quantum Measurement Book in PDF, Epub and Kindle
This book presents a new approach to analyze quantum mechanical tunnelling of particles across potential barriers. The conventional concepts of this phenomenon, which are based on a time-in-dependent or a time-dependent perturbation approach are inadequate in furnishing explanations to a number of effects, e.g. (i) the limit of resolution of a field emission macroscope (FEM), (ii) Esaki integral, representing the I-V characteristics of solid-state junctions, (iii) Josephson effect, (iv) tunnelling time, (v) tunnelling current density etc. The new analysis presented here not only provides adequate explanations to all the above mentioned effects but also furnishes an appropriate expression for the tunnelling current density which yields results closer to experimentally observed values.
Author | : D. K. Roy |
Publisher | : World Scientific |
Total Pages | : 136 |
Release | : 1993 |
Genre | : Science |
ISBN | : 9789810212230 |
Download A Quantum Measurement Approach to Tunnelling Book in PDF, Epub and Kindle
This book presents a new approach to analyze quantum mechanical tunnelling of particles across potential barriers. The conventional concepts of this phenomenon, which are based on a time-in-dependent or a time-dependent perturbation approach are inadequate in furnishing explanations to a number of effects, e.g. (i) the limit of resolution of a field emission macroscope (FEM), (ii) Esaki integral, representing the I-V characteristics of solid-state junctions, (iii) Josephson effect, (iv) tunnelling time, (v) tunnelling current density etc. The new analysis presented here not only provides adequate explanations to all the above mentioned effects but also furnishes an appropriate expression for the tunnelling current density which yields results closer to experimentally observed values.
Author | : D.K. Roy |
Publisher | : |
Total Pages | : 0 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download Quantum Measurement Approach To Tunnelling Book in PDF, Epub and Kindle
Author | : Mohsen Razavy |
Publisher | : World Scientific |
Total Pages | : 792 |
Release | : 2013-12-17 |
Genre | : Science |
ISBN | : 9814525030 |
Download Quantum Theory Of Tunneling (2nd Edition) Book in PDF, Epub and Kindle
In this revised and expanded edition, in addition to a comprehensible introduction to the theoretical foundations of quantum tunneling based on different methods of formulating and solving tunneling problems, different semiclassical approximations for multidimensional systems are presented. Particular attention is given to the tunneling of composite systems, with examples taken from molecular tunneling and also from nuclear reactions. The interesting and puzzling features of tunneling times are given extensive coverage, and the possibility of measurement of these times with quantum clocks are critically examined.In addition, by considering the analogy between evanescent waves in waveguides and in quantum tunneling, the times related to electromagnetic wave propagation have been used to explain certain aspects of quantum tunneling times. These topics are treated in both non-relativistic as well as relativistic regimes. Finally, a large number of examples of tunneling in atomic, molecular, condensed matter and nuclear physics are presented and solved.
Author | : Dilip Kumar Roy |
Publisher | : World Scientific |
Total Pages | : 386 |
Release | : 1986-12-01 |
Genre | : Science |
ISBN | : 981451361X |
Download Quantum Mechanical Tunnelling And Its Applications Book in PDF, Epub and Kindle
This book presents a new approach to quantum mechanical tunnelling and its applications to various fields of physics. The conventional concepts of this phenomenon, which are based on a time-dependent or time-independent approach, are inadequate in providing explanations for 1) the limit of resolution of field-emission microscope, 2) the Esaki-Integral representation the tunnelling I-V characteristics of tunnel diodes, 3) the Josephson effect, 4) the tunnelling time, etc. The new theory presented here not only provides adequate explanation for all the above-mentioned effects but also gives an accurate expression for tunnelling current density which predicts results closer to the experimentally observed values. The new presentation also provides a more comprehensive description of the results obtained using older treatment.
Author | : Joachim Ankerhold |
Publisher | : Springer Science & Business Media |
Total Pages | : 221 |
Release | : 2007-02-15 |
Genre | : Science |
ISBN | : 3540680748 |
Download Quantum Tunneling in Complex Systems Book in PDF, Epub and Kindle
In the last two decades remarkable progress has been made in understanding and describing tunneling processes in complex systems in terms of classical trajectories. This book introduces recent concepts and achievements with particular emphasis on a dynamical formulation and relations to specific systems in mesoscopic, molecular, and atomic physics. Advanced instanton techniques, e.g. for decay rates and tunnel splittings, are discussed in the first part. The second part covers current developments for wave-packet tunneling in real-time, and the third part describes thermodynamics and dynamical approaches for barrier transmission in statistical, particularly dissipative systems.
Author | : D Mugnai |
Publisher | : World Scientific |
Total Pages | : 486 |
Release | : 1997-04-19 |
Genre | : |
ISBN | : 9814546984 |
Download Tunneling And Its Implications: Proceedings Of The Adriatico Research Conference Book in PDF, Epub and Kindle
The motion of a particle undergoing quantum tunneling has long been an open and debated problem in several aspects. One of the most discussed is the determination of the time spent in such processes, but many other features deserve consideration. In this volume, both theoretical and experimental aspects, such as quantum measurement, optical analogy, experimental tests, solid state devices and time scale for anomalies (quantum Zeno effect and superluminal evanescence), are explored.
Author | : OpenStax |
Publisher | : |
Total Pages | : 622 |
Release | : 2016-11-04 |
Genre | : Science |
ISBN | : 9781680920451 |
Download University Physics Book in PDF, Epub and Kindle
University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. The text and images in this textbook are grayscale.
Author | : Yu. Kagan |
Publisher | : Elsevier |
Total Pages | : 516 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 0444600477 |
Download Quantum Tunnelling in Condensed Media Book in PDF, Epub and Kindle
The essays in this book deal with of the problem of quantum tunnelling and related behavior of a microscopic or macroscopic system, which interacts strongly with an "environment" - this being some form of condensed matter. The "system" in question need not be physically distinct from its environment, but could, for example, be one particular degree of freedom on which attention is focussed, as in the case of the Josephson junction studied in several of the papers. This general problem has been studied in many hundreds, if not thousands, of articles in the literature, in contexts as diverse as biophysics and quantum cosmology. The editors have grouped together papers which are representative of the main trends in this area in the last fifteen years or so and sufficiently related in general spirit and terminology that common themes can be discerned. The contributions are primarily theoretical, but the comparison with experiment is discussed wherever possible.
Author | : Leon Gunther |
Publisher | : Springer Science & Business Media |
Total Pages | : 503 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9401104034 |
Download Quantum Tunneling of Magnetization — QTM ’94 Book in PDF, Epub and Kindle
The first NATO Advanced Workshop on Quantum Tunneling of Magnetization (QTM) was organized and co-directed by Bernard Barbara, Leon Gunther, Nicolas Garcia, and Anthony Leggett and was held from June, 27 through July 1, 1994 in Grenoble and Chichilianne, France. These Proceedings include twenty-nine articles that represent the contributions of the participants in the Workshop. Quantum Tunneling of Magnetization is not only interesting for purely academic reasons. It was pointed out in the review article by L. Gunther in the December, 1990 issue of Physics World, that QTM may be destined to play a significant role within the next two decades in limiting the density of information storage in magnetic systems. Recent advances have indicated that this limitation may well be reached even earlier than first predicted. Furthermore, the number of people who have entered the field of study of QTM during these past few years has increased many fi)ld. The time was therefore opportune to hold a Workshop to bring together for the first time the leading researchers of QTM, both theoretical and experimental, so as to discuss the current status of the field. The most controversial issue at the time of the Workshop was how to establish r.eliable criteria for determining whether experimental results do indeed reveal manifestations of QTM. We believe that much progress was made at the Workshop on this issue.