NEW NONLOCAL CURRENTS IN THE QUANTUM SINE-GORDON MODEL

Authors
CHANG SJ RAJARAMAN R
Citation
Sj. Chang et R. Rajaraman, NEW NONLOCAL CURRENTS IN THE QUANTUM SINE-GORDON MODEL, Physics letters. Section B, 313(1-2), 1993, pp. 59-67
Citations number
7
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
313
Issue
1-2
Year of publication
1993
Pages
59 - 67
Database
ISI
SICI code
0370-2693(1993)313:1-2<59:NNCITQ>2.0.ZU;2-B
Abstract
We obtain new conserved and Lorentz covariant non-local currents of th e sine-Gordon system by treating this integrable, off-conformal system in the traditional canonical quantisation scheme. Our work and our cu rrents are to be contrasted with those of Bernard and LeClair who empl oy Zamolodchikov's method, couched in the conformal perturbation theor etic framework, to obtain conserved currents [A.B. Zamolodchikov, Inte rn. J. Mod. Phys. A. 3 (1988) 743; A 4 (1989) 4235. D. Bernard and A L eClair, Commun. Math. Phys. 142 (1991 ) 99; Phys. Lett. 247 (1990) 309 ].