Disorder Versus Quantum Coherence
Author | : Heiko Feldmann |
Publisher | : |
Total Pages | : 77 |
Release | : 2000 |
Genre | : Spinglas - Quantenmechanisches System |
ISBN | : |
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Author | : Heiko Feldmann |
Publisher | : |
Total Pages | : 77 |
Release | : 2000 |
Genre | : Spinglas - Quantenmechanisches System |
ISBN | : |
Author | : Toshihide Takagahara |
Publisher | : Academic Press |
Total Pages | : 508 |
Release | : 2003-02-10 |
Genre | : Technology & Engineering |
ISBN | : 0080525121 |
Semiconductor nanostructures are attracting a great deal of interest as the most promising device with which to implement quantum information processing and quantum computing. This book surveys the present status of nanofabrication techniques, near field spectroscopy and microscopy to assist the fabricated nanostructures. It will be essential reading for academic and industrial researchers in pure and applied physics, optics, semiconductors and microelectronics. The first up-to-date review articles on various aspects on quantum coherence, correlation and decoherence in semiconductor nanostructures
Author | : Q. Niu |
Publisher | : |
Total Pages | : 59 |
Release | : 1990 |
Genre | : |
ISBN | : |
This work deals with the quantum dynamics of a narrow band particle interacting with phonons and static disorder. The present theory is exact in the limit of small band width compared with the Debye energy, and covers various regimes in the parameter space of temperature and disorder strength. Therefore, the theory provides a unified framework for studying when and how the particle motion changes from coherent band like behavior to incoherent hopping, as the temperature and/or disorder strength are increased. The theory also includes the double well problem as a special case, where rather complete description of the particle motion is obtained. (jhd).
Author | : Tobias Brandes |
Publisher | : Springer |
Total Pages | : 328 |
Release | : 2014-01-15 |
Genre | : |
ISBN | : 9783662143957 |
Author | : Hui Yan |
Publisher | : Frontiers Media SA |
Total Pages | : 93 |
Release | : 2022-10-21 |
Genre | : Science |
ISBN | : 2832503160 |
Author | : Benoît Deveaud |
Publisher | : IOS Press |
Total Pages | : 583 |
Release | : 2009 |
Genre | : Science |
ISBN | : 1607500396 |
"This volume gives an overview of the manifestations of quantum coherence in different solid state systems, including semiconductor confined systems, magnetic systems, crystals and superconductors. Besides being of paramount importance in fundamental physics, the study of quantum coherence furnishes the starting point for important applications like quantum computing or secure data transmission. The coherent effects discussed mainly involve elementary excitations in solids like polaritons, excitons, magnons, macroscopic quantities like superconductor currents and electron spins. Also, several new aspects of the physics of quasi-particles are understood and discussed in this context. Due to the variety of systems in which quantum coherence may be observed, solid state systems are the natural candidates for applications that rely on coherence, for example quantum computer." --Book Jacket.
Author | : Tobias Brandes |
Publisher | : Springer Science & Business Media |
Total Pages | : 446 |
Release | : 2003-09-11 |
Genre | : Science |
ISBN | : 9783540407850 |
The phenomenon of localization of the electronic wave function in a random medium can be regarded as the key manifestation of quantum coherence in a condensed matter system. As one of the most remarkable phenomena in condensed matter physics discovered in the 20th century, the localization problem is an indispensable part of the theory of the quantum Hall effects and rivals superconductivity in its significance as a manifestation of quantum coherence at a macroscopic scale. The present volume, written by some of the leading experts in the field, is intended to highlight some of the recent progress in the field of localization, with particular emphasis on the effect of interactions on quantum coherence. The chapters are written in textbook style and should serve as a reliable and thorough introduction for advanced students or researchers already working in the field of mesoscopic physics.
Author | : Gabriela Slavcheva |
Publisher | : Springer Science & Business Media |
Total Pages | : 338 |
Release | : 2010-06-01 |
Genre | : Science |
ISBN | : 3642124917 |
The fundamental concept of quantum coherence plays a central role in quantum physics, cutting across disciplines of quantum optics, atomic and condensed matter physics. Quantum coherence represents a universal property of the quantum s- tems that applies both to light and matter thereby tying together materials and p- nomena. Moreover, the optical coherence can be transferred to the medium through the light-matter interactions. Since the early days of quantum mechanics there has been a desire to control dynamics of quantum systems. The generation and c- trol of quantum coherence in matter by optical means, in particular, represents a viable way to achieve this longstanding goal and semiconductor nanostructures are the most promising candidates for controllable quantum systems. Optical generation and control of coherent light-matter states in semiconductor quantum nanostructures is precisely the scope of the present book. Recently, there has been a great deal of interest in the subject of quantum coh- ence. We are currently witnessing parallel growth of activities in different physical systems that are all built around the central concept of manipulation of quantum coherence. The burgeoning activities in solid-state systems, and semiconductors in particular, have been strongly driven by the unprecedented control of coherence that previously has been demonstrated in quantum optics of atoms and molecules, and is now taking advantage of the remarkable advances in semiconductor fabrication technologies. A recent impetus to exploit the coherent quantum phenomena comes from the emergence of the quantum information paradigm.
Author | : M. M. Kaila |
Publisher | : Springer Science & Business Media |
Total Pages | : 430 |
Release | : 2012-09-20 |
Genre | : Technology & Engineering |
ISBN | : 3642303013 |
This book examines multi-quantum magnetic resonance imaging methods and the diagnostics of brain disorders. It consists of two Parts. The part I is initially devoted towards the basic concepts of the conventional single quantum MRI techniques. It is supplemented by the basic knowledge required to understand multi-quantum MRI. Practical illustrations are included both on recent developments in conventional MRI and the MQ-MRI. This is to illustrate the connection between theoretical concepts and their scope in the clinical applications. The Part II initially sets out the basic details about quadrupole charge distribution present in certain nuclei and their importance about the functions they perform in our brain. Some simplified final mathematical expressions are included to illustrate facts about the basic concepts of the quantum level interactions between magnetic dipole and the electric quadrupole behavior of useful nuclei present in the brain. Selected practical illustrations, from research and clinical practices are included to illustrate the newly emerging ideas and techniques. The reader should note that the two parts of the book are written with no interdependence. One can read them quite independently.
Author | : Abbott |
Publisher | : Imperial College Press |
Total Pages | : 469 |
Release | : 2008 |
Genre | : Science |
ISBN | : 1848162553 |
This book presents the hotly debated question of whether quantum mechanics plays a non-trivial role in biology. In a timely way, it sets out a distinct quantum biology agenda. The burgeoning fields of nanotechnology, biotechnology, quantum technology, and quantum information processing are now strongly converging. The acronym BINS, for Bio-Info-Nano-Systems, has been coined to describe the synergetic interface of these several disciplines. The living cell is an information replicating and processing system that is replete with naturally-evolved nanomachines, which at some level require a quantum mechanical description. As quantum engineering and nanotechnology meet, increasing use will be made of biological structures, or hybrids of biological and fabricated systems, for producing novel devices for information storage and processing and other tasks. An understanding of these systems at a quantum mechanical level will be indispensable.