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Title: TWA versus semiclassical unitary approximation for spin-like systems

Abstract

We analyze the stable and unstable evolution of spin-like systems in the framework of the Truncated Wigner and Unitary Approximations, and test the dependence of the time scale where the classical evolution determines the dynamics of a quantum system on the semiclassical parameter. - Highlights: • Semiclassical unitary approach (SUA) is applied for analysis of large-spin dynamics. • Stable and unstable evolution of spin systems in the semiclassical limit is discussed. • A comparative analysis of SUA and Truncated Wigner Approximation is performed.

Authors:
; ;
Publication Date:
OSTI Identifier:
22701524
Resource Type:
Journal Article
Journal Name:
Annals of Physics
Additional Journal Information:
Journal Volume: 383; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-4916
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; MATHEMATICAL EVOLUTION; PHASE SPACE; QUANTUM SYSTEMS; SEMICLASSICAL APPROXIMATION; SPIN

Citation Formats

Valtierra, I.F., E-mail: fernando11.valtierra@gmail.com, Romero, J.L., E-mail: jose.romero@cucei.udg.mx, and Klimov, A.B., E-mail: klimov.andrei@gmail.com. TWA versus semiclassical unitary approximation for spin-like systems. United States: N. p., 2017. Web. doi:10.1016/J.AOP.2017.06.006.
Valtierra, I.F., E-mail: fernando11.valtierra@gmail.com, Romero, J.L., E-mail: jose.romero@cucei.udg.mx, & Klimov, A.B., E-mail: klimov.andrei@gmail.com. TWA versus semiclassical unitary approximation for spin-like systems. United States. doi:10.1016/J.AOP.2017.06.006.
Valtierra, I.F., E-mail: fernando11.valtierra@gmail.com, Romero, J.L., E-mail: jose.romero@cucei.udg.mx, and Klimov, A.B., E-mail: klimov.andrei@gmail.com. Tue . "TWA versus semiclassical unitary approximation for spin-like systems". United States. doi:10.1016/J.AOP.2017.06.006.
@article{osti_22701524,
title = {TWA versus semiclassical unitary approximation for spin-like systems},
author = {Valtierra, I.F., E-mail: fernando11.valtierra@gmail.com and Romero, J.L., E-mail: jose.romero@cucei.udg.mx and Klimov, A.B., E-mail: klimov.andrei@gmail.com},
abstractNote = {We analyze the stable and unstable evolution of spin-like systems in the framework of the Truncated Wigner and Unitary Approximations, and test the dependence of the time scale where the classical evolution determines the dynamics of a quantum system on the semiclassical parameter. - Highlights: • Semiclassical unitary approach (SUA) is applied for analysis of large-spin dynamics. • Stable and unstable evolution of spin systems in the semiclassical limit is discussed. • A comparative analysis of SUA and Truncated Wigner Approximation is performed.},
doi = {10.1016/J.AOP.2017.06.006},
journal = {Annals of Physics},
issn = {0003-4916},
number = ,
volume = 383,
place = {United States},
year = {2017},
month = {8}
}