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Crossover-Time in Quantum Boson and Spin Systems: 21 (Lecture Notes in Physics Monographs, 21) - Softcover
Synopsis
This monograph compares classical and quantum dynamics for unstable (chaotic) systems. Characteristic times for divergence of classical and quantum solutions are estimated, and examples of classical-quantum "crossover-times" are provided. The book can be recommended to graduate students and to specialists.
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Review
"...an attractive introduction to some of the key mathematical and physical concepts of importance to an understanding of such systems and to the general area of quantum chaos. As such it deserves a much wider audience than its title might at first glance suggest." Contemporary Physics
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- PublisherSpringer
- Publication date2013
- ISBN 10 3662145065
- ISBN 13 9783662145067
- BindingPaperback
- LanguageEnglish
- Number of pages279
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Crossover-Time in Quantum Boson and Spin Systems (Lecture Notes in Physics Monographs)
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Crossover-Time in Quantum Boson and Spin Systems (Lecture Notes in Physics Monographs)
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Crossover-Time in Quantum Boson and Spin Systems
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Springer Berlin Heidelberg Nov 2013, 2013
ISBN 10: 3662145065
ISBN 13: 9783662145067
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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -We consider quantum dynamical systems (in general, these could be either Hamiltonian or dissipative, but in this review we shall be interested only in quantum Hamiltonian systems) that have, at least formally, a classical limit. This means, in particular, that each time-dependent quantum-mechanical expectation value X (t) has as i cl Ii -+ 0 a limit Xi(t) -+ x1 )(t) of the corresponding classical sys tem. Quantum-mechanical considerations include an additional di mensionless parameter f = iiiconst. connected with the Planck constant Ii. Even in the quasiclassical region where f~ 1, the dy namics of the quantum and classicalfunctions Xi(t) and XiCcl)(t) will be different, in general, and quantum dynamics for expectation val ues may coincide with classical dynamics only for some finite time. This characteristic time-scale, TIi., could depend on several factors which will be discussed below, including: choice of expectation val ues, initial state, physical parameters and so on. Thus, the problem arises in this connection: How to estimate the characteristic time scale TIi. of the validity of the quasiclassical approximation and how to measure it in an experiment For rather simple integrable quan tum systems in the stable regions of motion of their corresponding classical phase space, this time-scale T'' usually is of order (see, for example, [2]) const TIi. = p,li , (1.1) Q where p, is the dimensionless parameter of nonlinearity (discussed below) and a is a constant of the order of unity. 284 pp. Englisch. Seller Inventory # 9783662145067
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Crossover-Time in Quantum Boson and Spin Systems
Published by
Springer Berlin Heidelberg, 2013
ISBN 10: 3662145065
ISBN 13: 9783662145067
New
Taschenbuch
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - We consider quantum dynamical systems (in general, these could be either Hamiltonian or dissipative, but in this review we shall be interested only in quantum Hamiltonian systems) that have, at least formally, a classical limit. This means, in particular, that each time-dependent quantum-mechanical expectation value X (t) has as i cl Ii -+ 0 a limit Xi(t) -+ x1 )(t) of the corresponding classical sys tem. Quantum-mechanical considerations include an additional di mensionless parameter f = iiiconst. connected with the Planck constant Ii. Even in the quasiclassical region where f~ 1, the dy namics of the quantum and classicalfunctions Xi(t) and XiCcl)(t) will be different, in general, and quantum dynamics for expectation val ues may coincide with classical dynamics only for some finite time. This characteristic time-scale, TIi., could depend on several factors which will be discussed below, including: choice of expectation val ues, initial state, physical parameters and so on. Thus, the problem arises in this connection: How to estimate the characteristic time scale TIi. of the validity of the quasiclassical approximation and how to measure it in an experiment For rather simple integrable quan tum systems in the stable regions of motion of their corresponding classical phase space, this time-scale T'' usually is of order (see, for example, [2]) const TIi. = p,li , (1.1) Q where p, is the dimensionless parameter of nonlinearity (discussed below) and a is a constant of the order of unity. Seller Inventory # 9783662145067
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Crossover-Time in Quantum Boson and Spin Systems
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. This monograph compares classical and quantum dynamics for unstable (chaotic) systems. Characteristic times for divergence of classical and quantum solutions are estimated, and examples of classical-quantum crossover-times are provided. The book can be re. Seller Inventory # 5222491
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Crossover-Time in Quantum Boson and Spin Systems
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Crossover-Time in Quantum Boson and Spin Systems
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Crossover-Time in Quantum Boson and Spin Systems
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Crossover-Time in Quantum Boson and Spin Systems (Lecture Notes in Physics Monographs (21))
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