Long-time dynamics of the infinite-temperature Heisenberg magnet

Michael Chertkov, Igor Kolokolov

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Infinite-temperature long-time dynamics of Heisenberg model H^=-1/2tsumi,jJijS^iS^j is investigated. It is shown that the quantum-spin pair correlator is equal to the correlator of a classically evaluated vector field averaged over the initial conditions with respect to the Gaussian measure. In the continuous-limit case, the scaling estimations allow one to find the one-point correlator that turns out to be C(r=0;t)const×t-6/7. All results are obtained by straightforward procedures without any assumptions of the phenomenological character.

Original languageEnglish
Pages (from-to)3592-3595
Number of pages4
JournalPhysical Review B
Volume49
Issue number5
DOIs
Publication statusPublished - 1994
Externally publishedYes

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