MORE ABOUT PATH-INTEGRALS FOR SPIN

Authors
FUNAHASHI K KASHIWA T NIMA S SAKODA S
Citation
K. Funahashi et al., MORE ABOUT PATH-INTEGRALS FOR SPIN, Nuclear physics. B, 453(1-2), 1995, pp. 508-528
Citations number
13
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
453
Issue
1-2
Year of publication
1995
Pages
508 - 528
Database
ISI
SICI code
0550-3213(1995)453:1-2<508:MAPFS>2.0.ZU;2-H
Abstract
The path integral for the SU(2) spin system is reconsidered. We show t hat the Nielsen-Rohrlich (NR) formula is equivalent to the spin cohere nt state expression so that the phase space in the NR formalism is not topologically nontrivial. We also perform the WKB approximation in th e NR formula and find that it gives the exact result.