A symmetry of the string background field equations |
| |
| Affiliation: | 1. Dipartimento di Fisica, Università di Torino, and INFN Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy;2. CERN Dep PH-TH, 1211 Geneva 23, Switzerland;3. Laboratoire de Physique Théorique et Hautes Energies, CNRS UMR 7589, Université Pierre et Marie Curie – Paris 6, 4 place Jussieu, 75252 Paris Cedex 05, France;1. Department of Theoretical Physics, “Horia Hulubei” National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, Măgurele, Bucharest, 077125, Jud. Ilfov, Romania;2. Centre de Physique Théorique, École Polytechnique, CNRS, Université Paris-Saclay, F-91128 Palaiseau, France;3. Dipartimento di Fisica, Università di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy;4. INFN, Sezione di Roma “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Roma, Italy;1. Faculty of Physics, Shahid Bahonar University, P.O. Box 76175, Kerman, Iran;2. Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), P.O. Box 55134-441, Maragha, Iran;1. Department of Physics, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan;2. Maskawa Institute for Science and Culture, Kyoto Sangyo University, Kamigamo-Motoyama, Kita-ku, Kyoto 603-8555, Japan |
| |
| Abstract: | We investigate the effect of duality transformations on the geometries of a subclass of two-dimensional non-linear sigma-models. We identify the torsion which appears on dualizing such a model, initially without Wess-Zumino-Witten term, as the field strength of the gauge connection appearing in a Kałuza-Klein interpretation of the initial geometry. We show that duality preserves quantum conformal invariance at order [α′]0, where α′ is the string tension parameter, provided the change induced in the geometry by duality is accompanied by a shift in the dilaton field. We interpret these combined transformations as a symmetry of the order [α′]0 string background field equations. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
