Classical spin simulations with a quantum two-spin correction

Patrick Navez, Grigory A. Starkov, Boris V. Fine

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Classical simulations of high-temperature nuclear spin dynamics in solids are known to accurately predict relaxation for spin 1/2 lattices with a large number of interacting neighbors. Once the number of interacting neighbors becomes four or smaller, classical simulations lead to noticeable discrepancies. Here we attempt to improve the performance of the classical simulations by adding a term representing two-spin quantum correlations. The method is tested for a spin-1/2 chain. It exhibits good performance at shorter times, but, at longer times, it is hampered by a singular behavior of the resulting equations of motion.

    Original languageEnglish
    Pages (from-to)2013-2024
    Number of pages12
    JournalEuropean Physical Journal: Special Topics
    Volume227
    Issue number15-16
    DOIs
    Publication statusPublished - 1 Mar 2019

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