Quantum State Diffusion

Quantum State Diffusion PDF

Author: Ian Percival

Publisher: Cambridge University Press

Published: 1998-12-10

Total Pages: 200

ISBN-13: 0521620074

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The first book devoted to quantum state diffusion - suitable for graduate students and researchers.

Stochastic Evolution Of Quantum States In Open Systems And In Measurement Processes

Stochastic Evolution Of Quantum States In Open Systems And In Measurement Processes PDF

Author: Lajos Diosi

Publisher: World Scientific

Published: 1994-03-29

Total Pages: 154

ISBN-13: 9814551732

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Due to the probabilistic interpretation of quantum mechanics, quantum state evolution has both dynamic and stochastic features. Various systems show both features simultaneously and permanently. This workshop was intended to discuss the common trends, in measurement theory, statistical physics, quantum optics and cosmology.This proceedings volume contains most of the invited talks and may offer an insight into the current variety of related ideas.

New Developments on Fundamental Problems in Quantum Physics

New Developments on Fundamental Problems in Quantum Physics PDF

Author: M. Ferrero

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 447

ISBN-13: 940115886X

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Quantum theory is one of the most fascinating and successful constructs in the intellectual history of mankind. Nonetheless, the theory has very shaky philosophical foundations. This book contains thoughtful discussions by eminent researchers of a spate of experimental techniques newly developed to test some of the stranger predictions of quantum physics. The advances considered include recent experiments in quantum optics, electron and ion interferometry, photon down conversion in nonlinear crystals, single trapped ions interacting with laser beams, atom-field coupling in micromaser cavities, quantum computation, quantum cryptography, decoherence and macroscopic quantum effects, the quantum state diffusion model, quantum gravity, the quantum mechanics of cosmology and quantum non-locality along with the continuing debate surrounding the interpretation of quantum mechanics. Audience: The book is intended for physicists, philosophers of science, mathematicians, graduate students and those interested in the foundations of quantum theory.

Open Quantum Physics and Environmental Heat Conversion into Usable Energy

Open Quantum Physics and Environmental Heat Conversion into Usable Energy PDF

Author: Eliade Stefanescu

Publisher: Bentham Science Publishers

Published: 2014-12-18

Total Pages: 279

ISBN-13: 1608059863

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A Quantum system can be viewed as a larger closed system comprising of two components: an open quantum system and its surrounding environment. These two components interact with each other, and in the realm of theoretical physics, this interaction cannot be neglected. This eBook explains mathematical and statistical concepts essential for describing a realistic quantum system by presenting recent contributions in this field. The book commences by explaining of the basics of quantum mechanics, statistical physics, and physics of open quantum systems. Detailed methods of deriving theoretical equations with explicit analytical coefficients with respect to open quantum systems are also explained. The book concludes with the study of a quantum heat converter in the framework of an all-microscopic theory involving fermions, photons, and phonons. Readers of this book will gain a better understanding on the following topics: • Quantum mechanics including the Boson and Fermion states, Fermi-Dirac and Bose-Einstein statistics, spin-statistics relation, many-body systems of Bosons and Fermions, the Fermi-Dirac integrals of the Fermion state densities, and transport phenomena in semiconductors • Dissipative dynamics and quantum systems such as friction, diffusion, friction-diffusion relation, mobility, occupation probability dynamics, damping, spectral width, correlation and autocorrelation, memory, stability, bifurcation, self-organization, and chaos • Lindblad’s theory of open quantum systems through the work of Alicki and Lendi • Quantum tunneling as an interaction with a system. • Optical bistability, including the fundamental contributions of Carmichael, McCall, and Bonifacio. • Master equations based on the microscopic theory of Ford, Lewis, and O’Connell. • Field propagation in a semiconductor structure • Coherent light propagation in the framework of a microscopic model including the refractive index and the Raman frequency shift. • Heat conversion in the framework of an all-microscopic model of open queantum systems • Entropy dynamics in a matter field system.

Schrödinger Diffusion Processes

Schrödinger Diffusion Processes PDF

Author: Robert Aebi

Publisher: Springer Science & Business Media

Published: 1996-02-29

Total Pages: 202

ISBN-13: 9783764353865

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In 1931 Erwin Schrödinger considered the following problem: A huge cloud of independent and identical particles with known dynamics is supposed to be observed at finite initial and final times. What is the "most probable" state of the cloud at intermediate times? The present book provides a general yet comprehensive discourse on Schrödinger's question. Key roles in this investigation are played by conditional diffusion processes, pairs of non-linear integral equations and interacting particles systems. The introductory first chapter gives some historical background, presents the main ideas in a rather simple discrete setting and reveals the meaning of intermediate prediction to quantum mechanics. In order to answer Schrödinger's question, the book takes three distinct approaches, dealt with in separate chapters: transformation by means of a multiplicative functional, projection by means of relative entropy, and variation of a functional associated to pairs of non-linear integral equations. The book presumes a graduate level of knowledge in mathematics or physics and represents a relevant and demanding application of today's advanced probability theory.