Performance evaluation of the discrete truncated Wigner approximation for quench dynamics of quantum spin systems with long-range interactions

2020/08/31 by Masaya Kunimi, Kazuma Nagao, Shimpei Goto +1
Physics and Astronomy · #Dynamics (music) #Quantum #Quantum chaos and dynamical systems #Quantum dynamics #Quantum many-body systems #Quantum system #Spin (aerodynamics) #Statistical Mechanics and Entropy #Wigner distribution function #cond-mat.quant-gas

paper · pdf · doi:10.1103/physrevresearch.3.013060

published as Phys. Rev. Research 3, 013060 (2021) · 17 pages, 7 figures

openalex created_date 2020/09/08 · openalex publication_date 2021/01/19 · arxiv created 2021/01/20 · arxiv updated 2021/01/27 · openalex updated_date 2026/08/06

Abstract

The authors study a validity timescale of the discrete truncated Wigner approximation for several quantum-spin systems with long-range interactions of step-function form by using the Bogoliubov-Born-Green-Kirkwood-Yvon equation.

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