Year: 2021
Type: article
Abstract: We apply the semi-classical limit of the generalized SO(3) map for representation of variable-spin systems in a four-dimensional symplectic manifold and approximate their evolution terms of effective classical dynamics on T*S2. Using the asymptotic form of the star-product, we manage to "quantize" one of the classical dynamic variables and introduce a discretized version of the Truncated Wigner Approximation (TWA). Two emblematic examples of quantum dynamics (rotor in an external field and two coupled spins) are analyzed, and the results of exact, continuous, and discretized versions of TWA are compared.
Source: Entropy
DOI: 10.3390/e23060684
Authors: Giovani E. Morales-Hernández, Juan C. Castellanos, José L. Romero, Andrei B. Klimov
Institution: Universidad de Guadalajara
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,944
Award: G8524706731
OpenAlex ID: W3164455293