Open Systems and Measurement in Relativistic Quantum Theory

Open Systems and Measurement in Relativistic Quantum Theory PDF Author: Heinz-Peter Breuer
Publisher: Springer Science & Business Media
ISBN: 9783540659785
Category : Science
Languages : en
Pages : 256

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Book Description
This book treats modern aspects of open systems, measurement, and decoherence in relativistic quantum theory. It starts with a comprehensive introduction to the problems related to measuring local and nonlocal observables and the constraints imposed by the causality principle. In the articles that follow, the emphasis lies on new theoretical models. Quantum dynamical semigroups and stochastic processes in Hilbert space are introduced, as are dynamical reduction models. Further topics include relativistic generalizations of the continuous spontaneous localization model and of the quantum state diffusion model and decoherence and the dynamical selection of preferred basis sets in the framework of continuous measurement theory and of the decoherent histories approach. Mathematical aspects of quantum measurement theory and dynamical entropies are also studied from the viewpoint of the operational approach to quantum mechanics.

Open Systems and Measurement in Relativistic Quantum Theory

Open Systems and Measurement in Relativistic Quantum Theory PDF Author: Heinz-Peter Breuer
Publisher: Springer Science & Business Media
ISBN: 9783540659785
Category : Science
Languages : en
Pages : 256

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Book Description
This book treats modern aspects of open systems, measurement, and decoherence in relativistic quantum theory. It starts with a comprehensive introduction to the problems related to measuring local and nonlocal observables and the constraints imposed by the causality principle. In the articles that follow, the emphasis lies on new theoretical models. Quantum dynamical semigroups and stochastic processes in Hilbert space are introduced, as are dynamical reduction models. Further topics include relativistic generalizations of the continuous spontaneous localization model and of the quantum state diffusion model and decoherence and the dynamical selection of preferred basis sets in the framework of continuous measurement theory and of the decoherent histories approach. Mathematical aspects of quantum measurement theory and dynamical entropies are also studied from the viewpoint of the operational approach to quantum mechanics.

The Theory of Open Quantum Systems

The Theory of Open Quantum Systems PDF Author: Heinz-Peter Breuer
Publisher: Oxford University Press, USA
ISBN: 9780198520634
Category : Mathematics
Languages : en
Pages : 648

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Book Description
This book treats the central physical concepts and mathematical techniques used to investigate the dynamics of open quantum systems. To provide a self-contained presentation the text begins with a survey of classical probability theory and with an introduction into the foundations of quantum mechanics with particular emphasis on its statistical interpretation. The fundamentals of density matrix theory, quantum Markov processes and dynamical semigroups are developed. The most important master equations used in quantum optics and in the theory of quantum Brownian motion are applied to the study of many examples. Special attention is paid to the theory of environment induced decoherence, its role in the dynamical description of the measurement process and to the experimental observation of decohering Schrodinger cat states. The book includes the modern formulation of open quantum systems in terms of stochastic processes in Hilbert space. Stochastic wave function methods and Monte Carlo algorithms are designed and applied to important examples from quantum optics and atomic physics, such as Levy statistics in the laser cooling of atoms, and the damped Jaynes-Cummings model. The basic features of the non-Markovian quantum behaviour of open systems are examined on the basis of projection operator techniques. In addition, the book expounds the relativistic theory of quantum measurements and discusses several examples from a unified perspective, e.g. non-local measurements and quantum teleportation. Influence functional and super-operator techniques are employed to study the density matrix theory in quantum electrodynamics and applications to the destruction of quantum coherence are presented. The text addresses graduate students and lecturers in physics and applied mathematics, as well as researchers with interests in fundamental questions in quantum mechanics and its applications. Many analytical methods and computer simulation techniques are developed and illustrated with the help of numerous specific examples. Only a basic understanding of quantum mechanics and of elementary concepts of probability theory is assumed.

Relativistic Quantum Measurement and Decoherence

Relativistic Quantum Measurement and Decoherence PDF Author: Heinz-Peter Breuer
Publisher: Springer
ISBN: 3540453695
Category : Science
Languages : en
Pages : 144

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Book Description


Quantum Theory and Measurement

Quantum Theory and Measurement PDF Author: John Archibald Wheeler
Publisher: Princeton University Press
ISBN: 1400854555
Category : Science
Languages : en
Pages : 841

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Book Description
The forty-nine papers collected here illuminate the meaning of quantum theory as it is disclosed in the measurement process. Together with an introduction and a supplemental annotated bibliography, they discuss issues that make quantum theory, overarching principle of twentieth-century physics, appear to many to prefigure a new revolution in science. Originally published in 1983. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Vignettes in Gravitation and Cosmology

Vignettes in Gravitation and Cosmology PDF Author: L. Sriramkumar
Publisher: World Scientific
ISBN: 9814322067
Category : Science
Languages : en
Pages : 284

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Book Description
This book comprises expository articles on different aspects of gravitation and cosmology that are aimed at graduate students. The topics discussed are of contemporary interest assuming only an elementary introduction to gravitation and cosmology. The presentations are to a certain extent pedagogical in nature, and the material developed is not usually found in sufficient detail in recent textbooks in these areas.

Time in Quantum Mechanics

Time in Quantum Mechanics PDF Author: Gonzalo Muga
Publisher: Springer Science & Business Media
ISBN: 3540734724
Category : Science
Languages : en
Pages : 461

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Book Description
The treatment of time in quantum mechanics is still an important and challenging open question in the foundation of the quantum theory. This multi-authored book, written as an introductory guide for newcomers to the subject, as well as a useful source of information for the expert, covers many of the open questions. The book describes the problems, and the attempts and achievements in defining, formalizing and measuring different time quantities in quantum theory.

Quantum Measurements and Decoherence

Quantum Measurements and Decoherence PDF Author: M. Mensky
Publisher: Springer Science & Business Media
ISBN: 9401595666
Category : Science
Languages : en
Pages : 238

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Book Description
Quantum measurement (Le., a measurement which is sufficiently precise for quantum effects to be essential) was always one of the most impor tant points in quantum mechanics because it most evidently revealed the difference between quantum and classical physics. Now quantum measure ment is again under active investigation, first of all because of the practical necessity of dealing with highly precise and complicated measurements. The nature of quantum measurement has become understood much bet ter during this new period of activity, the understanding being expressed by the concept of decoherence. This term means a physical process lead ing from a pure quantum state (wave function) of the system prior to the measurement to its state after the measurement which includes classical elements. More concretely, decoherence occurs as a result of the entangle ment of the measured system with its environment and results in the loss of phase relations between components of the wave function of the measured system. Decoherence is essentially nothing else than quantum measurement, but considered from the point of view of its physical mechanism and resolved in time. The present book is devoted to the two concepts of quantum measure ment and decoherence and to their interrelation, especially in the context of continuous quantum measurement.

Decoherence and the Appearance of a Classical World in Quantum Theory

Decoherence and the Appearance of a Classical World in Quantum Theory PDF Author: Erich Joos
Publisher: Springer Science & Business Media
ISBN: 3662053284
Category : Science
Languages : en
Pages : 500

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Book Description
A unique description of the phenomena that arise from the interaction between quantum systems and their environment. Because of the novel character of the approach discussed, the book addresses scientists from all fields of physics and related disciplines as well as students of physics.

Collapse of the Wave Function

Collapse of the Wave Function PDF Author: Shan Gao
Publisher: Cambridge University Press
ISBN: 1108428983
Category : Science
Languages : en
Pages : 361

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Book Description
An overview of the collapse theories of quantum mechanics. Written by distinguished physicists and philosophers of physics, it discusses the origin and implications of wave-function collapse, the controversies around collapse models and their ontologies, and new arguments for the reality of wave function collapse.

Journal of Physics

Journal of Physics PDF Author:
Publisher:
ISBN:
Category : Mathematical physics
Languages : en
Pages : 720

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Book Description