| Autor: |
Bin Guo, Samir D. Mathur |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-45 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP10(2019)155 |
| Popis: |
Abstract We consider states of the D1-D5 CFT where only the left-moving sector is excited. As we deform away from the orbifold point, some of these states will remain BPS while others can ‘lift’. The lifting can be computed by a path integral containing two twist deformations; however, the relevant 4-point amplitude cannot be computed explicitly in many cases. We analyze an older proposal by Gava and Narain where the lift can be computed in terms of a finite number of 3-point functions. A direct Hamiltonian decomposition of the path integral involves an infinite number of 3-point functions, as well the first order correction to the starting state. We note that these corrections to the state account for the infinite number of 3-point functions arising from higher energy states, and one can indeed express the path-integral result in terms of a finite number of 3-point functions involving only the leading order states that are degenerate. The first order correction to the super-charge G ¯ 1 $$ {\overline{G}}^{(1)} $$ gets replaced by a projection G ¯ P $$ {\overline{G}}^{(P)} $$ ; this projected operator can also be used to group the states into multiplets whose members have the same lifting. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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