Ancillary 发表于 2025-3-28 15:01:49

Perception and Bodily Dependencyum systems in the quasiclassical region by external coherent fields (hydrogen atom, molecules, etc. ). The characteristic time-scale . when quantum effects lead to the suppression of classical diffusion is investigated in . As shown in , under conditions of strong classical chaos . ∼ . ≫ ..

Intuitive 发表于 2025-3-28 22:43:28

The Time of Applicability of the Quasiclassical Approach in a Boson System of Two Interacting Quantmber of primary NRs are overlapped (section 6), the time-scale . of applicability of the quasiclassical approach can be estimated analytically (see (6.36), (6.37), (6.39)), and is logarithmically small in terms of the quasiclassical parameter . (6.38).

inspired 发表于 2025-3-28 23:13:51

Characteristic Times for Chaotic Dynamics in Wigner Representation,um systems in the quasiclassical region by external coherent fields (hydrogen atom, molecules, etc. ). The characteristic time-scale . when quantum effects lead to the suppression of classical diffusion is investigated in . As shown in , under conditions of strong classical chaos . ∼ . ≫ ..

Sigmoidoscopy 发表于 2025-3-29 07:04:10

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刚开始 发表于 2025-3-29 08:24:31

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残废的火焰 发表于 2025-3-29 15:01:13

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gruelling 发表于 2025-3-29 16:00:28

Mathematical Concepts of The Material World quantum Hamiltonian systems) that have, at least formally, a classical limit. This means, in particular, that each time-dependent quantum-mechanical expectation value .(.) has as . → 0 a limit .(.) → .(.) of the corresponding classical system. Quantum-mechanical considerations include an additional

魔鬼在游行 发表于 2025-3-29 22:56:40

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reaching 发表于 2025-3-30 00:16:39

Statistical Approach to Photon Localizationpendent wave function (or density matrix) then solve it in some set of basis states and take expectation values of the corresponding operators. This approach is at a disadvantage, though in its physical interpretation for quasiclassical asymptotics, since the classical limit for nonlinear Hamiltonia

INTER 发表于 2025-3-30 04:18:04

https://doi.org/10.1007/978-94-010-1327-7tation values is valid only for the finite time interval 0 < . < .. This is because the quantum terms are singular perturbations of the classical dynamics. Indeed, in the corresponding c-number equations for expectation values the “small quantum parameter” . multiplies the highest order derivatives
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查看完整版本: Titlebook: Crossover-Time in Quantum Boson and Spin Systems; Gennady P. Berman,Evgeny N. Bulgakov,Darryl D. Hol Book 1994 Springer-Verlag Berlin Heid