MODIFICATION OF THE CONVENTIONAL HOLSTEIN-PRIMAKOFF BOSON REPRESENTATION FOR THE SU(1, 1)-ALGEBRA AND ITS CLASSICAL COUNTERPART

Authors
KURIYAMA A DAPROVIDENCIA J TSUE Y YAMAMURA M
Citation
A. Kuriyama et al., MODIFICATION OF THE CONVENTIONAL HOLSTEIN-PRIMAKOFF BOSON REPRESENTATION FOR THE SU(1, 1)-ALGEBRA AND ITS CLASSICAL COUNTERPART, Progress of theoretical physics, 99(5), 1998, pp. 819-829
Citations number
11
Categorie Soggetti
Physics
Journal title
Progress of theoretical physics → ACNP
ISSN journal
0033068X
Volume
99
Issue
5
Year of publication
1998
Pages
819 - 829
Database
ISI
SICI code
0033-068X(1998)99:5<819:MOTCHB>2.0.ZU;2-T
Abstract
In order to avoid unsatisfactory points of the conventional Holstein-P rimakoff representation of the su(1,1)-algebra for the description of thermal effects in many-boson or oscillating systems, the conventional form is modified. The basic idea can be found in a possible canonical transformation from the conventional to the new form. Four forms are given, and with the aid of these modified forms, it is expected to des cribe, for example, fluctuations around a bose-condensed state.