Quantum spin dynamics by path integral centroid molecular dynamics method

Authors
Shigeta, Y Kinugawa, K Nagao, H Ohta, K Yamaguchi, K
Citation
Y. Shigeta et al., Quantum spin dynamics by path integral centroid molecular dynamics method, PROG T PH S, (138), 2000, pp. 533-534
Citations number
4
Categorie Soggetti
Physics
Journal title
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT
ISSN journal
03759687 → ACNP
Issue
138
Year of publication
2000
Pages
533 - 534
Database
ISI
SICI code
0375-9687(2000):138<533:QSDBPI>2.0.ZU;2-V
Abstract
We propose a path integral method to investigate the quantum spin dynamics. A centroid with spin is introduced as an average spin coordinate of a clos ed isomorphic necklace of each spill space, so-called a spin centroid, We c alculate the magnetization of a system with total spin 1 and observe magnet ic quantum tunneling.