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Titolo:
On quantum T-duality in sigma models
Autore:
Balog, J; Forgacs, P; Mohammedi, N; Palla, L; Schnittger, J;
Indirizzi:
Univ Tours, Lab Math & Phys Theor, CNRS, UPRESA 6083, F-37200 Tours, France Univ Tours Tours France F-37200 CNRS, UPRESA 6083, F-37200 Tours, France Roland Eotvos Univ, Inst Theoret Phys, H-1088 Budapest, Hungary Roland Eotvos Univ Budapest Hungary H-1088 hys, H-1088 Budapest, Hungary
Titolo Testata:
NUCLEAR PHYSICS B
fascicolo: 1-2, volume: 535, anno: 1998,
pagine: 461 - 482
SICI:
0550-3213(199812)535:1-2<461:OQTISM>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
NON-ABELIAN DUALITY; PATH-INTEGRAL DERIVATION; TRANSFORMATIONS; CURRENTS;
Keywords:
sigma models; duality; quantum corrections;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Forgacs, P Univ00ours, Lab Math & Phys Theor, CNRS, UPRESA 6083, Parc Grandmont, F-372 Univ Tours Parc Grandmont Tours France F-37200 randmont, F-372
Citazione:
J. Balog et al., "On quantum T-duality in sigma models", NUCL PHYS B, 535(1-2), 1998, pp. 461-482

Abstract

The problem of quantum equivalence between non-linear sigma models relatedby Abelian or non-Abelian T-duality is studied in perturbation theory. Using the anomalous Ward identity for Weyl symmetry we derive a relation between the Weyl anomaly coefficients of the original and dual theories. The analysis is not restricted to conformally invariant backgrounds. The formalismis applied to the study of two examples. The first is a model based on SU(2) non-Abelian T-duality. The second represents a simple realization of Poisson-Lie T-duality involving the Drinfeld double based on SU(2). In both cases quantum T-duality is established at the one-loop level. (C) 1998 Elsevier Science B.V.

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Documento generato il 07/07/20 alle ore 12:41:46