Exactly solvable string models of curved space-time backgrounds
| dc.creator | Russo, J. G. | |
| dc.creator | Tseytlin, A. A. | |
| dc.date | 1995-02-06 | |
| dc.date | 1995-04-30 | |
| dc.date.accessioned | 2026-07-07T11:14:46Z | |
| dc.date.available | 2026-07-07T11:14:46Z | |
| dc.description | We consider a new 3-parameter class of exact 4-dimensional solutions in closed string theory and solve the corresponding string model, determining the physical spectrum and the partition function. The background fields (4-metric, antisymmetric tensor, two Kaluza-Klein vector fields, dilaton and modulus) generically describe axially symmetric stationary rotating (electro)magnetic flux-tube type universes. Backgrounds of this class include both the dilatonic (a=1) and Kaluza-Klein (a=\sqrt 3) Melvin solutions and the uniform magnetic field solution, as well as some singular space-times. Solvability of the string sigma model is related to its connection via duality to a simpler model which is a ``twisted" product of a flat 2-space and a space dual to 2-plane. We discuss some physical properties of this model (tachyonic instabilities in the spectrum, gyromagnetic ratios, issue of singularities, etc.). It provides one of the first examples of a consistent solvable conformal string model with explicit D=4 curved space-time interpretation. | |
| dc.description | 54 pages, harvmac (corrected and extended version) | |
| dc.identifier | https://arxiv.org/abs/hep-th/9502038 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9502038 | |
| dc.identifier | Nucl.Phys.B449:91-145,1995 | |
| dc.identifier | doi:10.1016/0550-3213(95)00245-N | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/192184 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Exactly solvable string models of curved space-time backgrounds | |
| dc.type | text |