Quantum Mechanics in Phase Space

Quantum Mechanics in Phase Space PDF Author: Cosmas Zachos
Publisher: World Scientific
ISBN: 9812383840
Category : Science
Languages : en
Pages : 560

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Book Description
Wigner's quasi-probability distribution function in phase space is a special (Weyl) representation of the density matrix. It has been useful in describing quantum transport in quantum optics; nuclear physics; decoherence, quantum computing, and quantum chaos. It is also important in signal processing and the mathematics of algebraic deformation. A remarkable aspect of its internal logic, pioneered by Groenewold and Moyal, has only emerged in the last quarter-century: it furnishes a third, alternative, formulation of quantum mechanics, independent of the conventional Hilbert space, or path integral formulations.In this logically complete and self-standing formulation, one need not choose sides ? coordinate or momentum space. It works in full phase space, accommodating the uncertainty principle, and it offers unique insights into the classical limit of quantum theory. This invaluable book is a collection of the seminal papers on the formulation, with an introductory overview which provides a trail map for those papers; an extensive bibliography; and simple illustrations, suitable for applications to a broad range of physics problems. It can provide supplementary material for a beginning graduate course in quantum mechanics.

Quantum Mechanics in Phase Space

Quantum Mechanics in Phase Space PDF Author: Cosmas Zachos
Publisher: World Scientific
ISBN: 9812383840
Category : Science
Languages : en
Pages : 560

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Book Description
Wigner's quasi-probability distribution function in phase space is a special (Weyl) representation of the density matrix. It has been useful in describing quantum transport in quantum optics; nuclear physics; decoherence, quantum computing, and quantum chaos. It is also important in signal processing and the mathematics of algebraic deformation. A remarkable aspect of its internal logic, pioneered by Groenewold and Moyal, has only emerged in the last quarter-century: it furnishes a third, alternative, formulation of quantum mechanics, independent of the conventional Hilbert space, or path integral formulations.In this logically complete and self-standing formulation, one need not choose sides ? coordinate or momentum space. It works in full phase space, accommodating the uncertainty principle, and it offers unique insights into the classical limit of quantum theory. This invaluable book is a collection of the seminal papers on the formulation, with an introductory overview which provides a trail map for those papers; an extensive bibliography; and simple illustrations, suitable for applications to a broad range of physics problems. It can provide supplementary material for a beginning graduate course in quantum mechanics.

Quantum Mechanics In Phase Space: An Overview With Selected Papers

Quantum Mechanics In Phase Space: An Overview With Selected Papers PDF Author: Thomas L Curtright
Publisher: World Scientific
ISBN: 981448587X
Category : Science
Languages : en
Pages : 560

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Book Description
Wigner's quasi-probability distribution function in phase space is a special (Weyl) representation of the density matrix. It has been useful in describing quantum transport in quantum optics; nuclear physics; decoherence, quantum computing, and quantum chaos. It is also important in signal processing and the mathematics of algebraic deformation. A remarkable aspect of its internal logic, pioneered by Groenewold and Moyal, has only emerged in the last quarter-century: it furnishes a third, alternative, formulation of quantum mechanics, independent of the conventional Hilbert space, or path integral formulations.In this logically complete and self-standing formulation, one need not choose sides — coordinate or momentum space. It works in full phase space, accommodating the uncertainty principle, and it offers unique insights into the classical limit of quantum theory. This invaluable book is a collection of the seminal papers on the formulation, with an introductory overview which provides a trail map for those papers; an extensive bibliography; and simple illustrations, suitable for applications to a broad range of physics problems. It can provide supplementary material for a beginning graduate course in quantum mechanics.

A Concise Treatise on Quantum Mechanics in Phase Space

A Concise Treatise on Quantum Mechanics in Phase Space PDF Author: Thomas L Curtright
Publisher: World Scientific Publishing Company
ISBN: 9814520462
Category : Science
Languages : en
Pages : 172

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Book Description
This is a text on quantum mechanics formulated simultaneously in terms of position and momentum, i.e. in phase space. It is written at an introductory level, drawing on the remarkable history of the subject for inspiration and motivation. Wigner functions — density matrices in a special Weyl representation — and star products are the cornerstones of the formalism. The resulting framework is a rich source of physical intuition. It has been used to describe transport in quantum optics, structure and dynamics in nuclear physics, chaos, and decoherence in quantum computing. It is also of importance in signal processing and the mathematics of algebraic deformation. A remarkable aspect of its internal logic, pioneered by Groenewold and Moyal, has only emerged in the last quarter-century: it furnishes a third, alternative way to formulate and understand quantum mechanics, independent of the conventional Hilbert space or path integral approaches to the subject. In this logically complete and self-standing formulation, one need not choose sides between coordinate or momentum space variables. It works in full phase space, accommodating the uncertainty principle; and it offers unique insights into the classical limit of quantum theory. The observables in this formulation are c-number functions in phase space instead of operators, with the same interpretation as their classical counterparts, only composed together in novel algebraic ways using star products. This treatise provides an introductory overview and supplementary material suitable for an advanced undergraduate or a beginning graduate course in quantum mechanics.

Phase Space Picture Of Quantum Mechanics: Group Theoretical Approach

Phase Space Picture Of Quantum Mechanics: Group Theoretical Approach PDF Author: Young Suh Kim
Publisher: World Scientific
ISBN: 9814506672
Category : Science
Languages : en
Pages : 352

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Book Description
This book covers the theory and applications of the Wigner phase space distribution function and its symmetry properties. The book explains why the phase space picture of quantum mechanics is needed, in addition to the conventional Schrödinger or Heisenberg picture. It is shown that the uncertainty relation can be represented more accurately in this picture. In addition, the phase space picture is shown to be the natural representation of quantum mechanics for modern optics and relativistic quantum mechanics of extended objects.

Phase Space Picture of Quantum Mechanics

Phase Space Picture of Quantum Mechanics PDF Author: Y. S. Kim
Publisher: World Scientific
ISBN: 9789810203603
Category : Science
Languages : en
Pages : 354

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Book Description
This book covers the theory and applications of the Wigner phase space distribution function and its symmetry properties. The book explains why the phase space picture of quantum mechanics is needed, in addition to the conventional Schr”dinger or Heisenberg picture. It is shown that the uncertainty relation can be represented more accurately in this picture. In addition, the phase space picture is shown to be the natural representation of quantum mechanics for modern optics and relativistic quantum mechanics of extended objects.

Quantum Statistical Mechanics in Classical Phase Space

Quantum Statistical Mechanics in Classical Phase Space PDF Author: ATTARD
Publisher: IOP Publishing Limited
ISBN: 9780750340533
Category : Science
Languages : en
Pages : 300

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Book Description
Quantum and classical physics are presented as distinct and unrelated. Transformation to classical phase space gives researchers access to algorithms derived from classical statistical mechanics that promise results on much more favourable terms. This book offers a framework for understanding the quantum world and collective molecular behaviour.

Quantum Mechanics on Phase Space

Quantum Mechanics on Phase Space PDF Author: Franklin E. Schroeck Jr.
Publisher: Springer Science & Business Media
ISBN: 9401728305
Category : Science
Languages : en
Pages : 687

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Book Description
In this monograph, we shall present a new mathematical formulation of quantum theory, clarify a number of discrepancies within the prior formulation of quantum theory, give new applications to experiments in physics, and extend the realm of application of quantum theory well beyond physics. Here, we motivate this new formulation and sketch how it developed. Since the publication of Dirac's famous book on quantum mechanics [Dirac, 1930] and von Neumann's classic text on the mathematical foundations of quantum mechanics two years later [von Neumann, 1932], there have appeared a number of lines of development, the intent of each being to enrich quantum theory by extra polating or even modifying the original basic structure. These lines of development have seemed to go in different directions, the major directions of which are identified here: First is the introduction of group theoretical methods [Weyl, 1928; Wigner, 1931] with the natural extension to coherent state theory [Klauder and Sudarshan, 1968; Peremolov, 1971]. The call for an axiomatic approach to physics [Hilbert, 1900; Sixth Problem] led to the development of quantum logic [Mackey, 1963; Jauch, 1968; Varadarajan, 1968, 1970; Piron, 1976; Beltrametti & Cassinelli, 1981], to the creation of the operational approach [Ludwig, 1983-85, 1985; Davies, 1976] with its application to quantum communication theory [Helstrom, 1976; Holevo, 1982), and to the development of the C* approach [Emch, 1972]. An approach through stochastic differential equations ("stochastic mechanics") was developed [Nelson, 1964, 1966, 1967].

Intelligent Modeling, Diagnosis And Control Of Manufacturing Processes

Intelligent Modeling, Diagnosis And Control Of Manufacturing Processes PDF Author: B-t Chu
Publisher: World Scientific
ISBN: 9814520446
Category : Phase space (Statistical physics)
Languages : en
Pages : 273

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Book Description
This volume demonstrates that the key to the modeling, diagnosis and control of the next generation manufacturing processes is to integrate knowledge-based systems with traditional techniques. An up-to-date study is given here of this relatively recent development.The book is for those working primarily with traditional techniques and those working in the knowledge-based systems field. Both sets of readers will find it to be a source of many specific ideas about the integration of knowledge-based systems with traditional techniques, and carrying a wealth of useful references.

Wave Mechanics

Wave Mechanics PDF Author: Gunter Ludwig
Publisher: Elsevier
ISBN: 1483182487
Category : Science
Languages : en
Pages : 236

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Book Description
Wave Mechanics discusses the quantum physical concepts of wave. The title accounts the development of quantum theory. The text first covers the historical development of quantum theory, and then proceeds to tackling the two routes to quantum mechanics. Next, the selection discusses the matrix mechanics and wave mechanics as representations of mathematical structures in Hubert space. The text also deals with the physical interpretation of quantum mechanics, along with the temporal development of the physical quantities. In the second part, the selection presents several papers in quantum mechanics. The book will be of great use to students and researchers of quantum physics.

Foundations Of Quantum Mechanics In The Light Of New Technology: Selected Papers From The Proceedings Of The First Through Fourth International Symposia On Foundations Of Quantum Mechanics

Foundations Of Quantum Mechanics In The Light Of New Technology: Selected Papers From The Proceedings Of The First Through Fourth International Symposia On Foundations Of Quantum Mechanics PDF Author: Yoshimasa Murayama
Publisher: World Scientific
ISBN: 9814498289
Category : Science
Languages : en
Pages : 500

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Book Description
”I re-experience once again the stimulating atmosphere of each of the ISQMs: There were theoretical discussions in diverse frontier areas of physics as well as descriptions of beautiful new (or planned) experiments and technologies. From each of the Symposia I always came away with the exciting feeling of how wonderful physics is and how lucky it is to be a physicist in this era.”Chen Ning YangThis volume is selected from the First through Fourth International Symposia on Foundations of Quantum Mechanics. The International Symposia on Foundations of Quantum Mechanics in the Light of New Technology (ISQMs) provide a unique interdisciplinary forum where distinguished theorists and experimentalists of diverse fields of research gather to discuss basic problems in quantum mechanics in the light of new technology. This volume collects 51 papers selected from over 200 papers by many distinguished scientists. It includes articles by C N Yang, J A Wheeler, Y Nambu, L Esaki and M P A Fisher, to name just a few, and contains topics ranging from quantum measurements to quantum cosmology.