T T ¯ $$ T\overline{T} $$ , black holes and negative strings
| Autor: | David Kutasov, Amit Giveon, Soumangsu Chakraborty |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Nuclear and High Energy Physics Spacetime 010308 nuclear & particles physics Boundary (topology) Little string theory AdS-CFT Correspondence IntegTable Field Theories String theory Computer Science::Digital Libraries 01 natural sciences Upper and lower bounds Gauge-gravity correspondence AdS/CFT correspondence High Energy Physics::Theory General Relativity and Quantum Cosmology Singularity 0103 physical sciences Black Holes in String Theory Computer Science::Mathematical Software lcsh:QC770-798 Dilaton lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics Mathematical physics |
| Zdroj: | Journal of High Energy Physics, Vol 2020, Iss 9, Pp 1-32 (2020) Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP09(2020)057 |
| Popis: | String theory on AdS3 has a solvable single-trace irrelevant deformation that is closely related to $$ T\overline{T} $$ T T ¯ . For one sign of the coupling, it leads to an asymptotically linear dilaton spacetime, and a corresponding Hagedorn spectrum. For the other, the resulting spacetime has a curvature singularity at a finite radial location, and an upper bound on the energies of states. Beyond the singularity, the signature of spacetime is flipped and there is an asymptotically linear dilaton boundary at infinity. We study the properties of black holes and fundamental strings in this spacetime, and find a sensible picture. The singularity does not give rise to a hard ultraviolet wall for excitations -one must include the region beyond it to understand the theory. The size of black holes diverges as their energy approaches the upper bound, as does the location of the singularity. Fundamental strings pass smoothly through the singularity, but if their energy is above the upper bound, their trajectories are singular. From the point of view of the boundary at infinity, this background can be thought of as a vacuum of Little String Theory which contains a large number of negative strings. |
| Databáze: | OpenAIRE |
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