Closed string tachyon condensation revisited
| Autor: | Scheinpflug, Jaroslav, Schnabl, Martin |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We consider condensation of nearly marginal matter tachyons in closed string field theory and observe that upon restricting to a subspace of states not containing the ghost dilaton, the on-shell value of the action is proportional to the shift of the central charge of the matter CFT. This correspondence lets us find a novel conformal perturbation theory formula for the next-to-leading order shift of the central charge for a generic theory, which we test on Zamolodchikov's flow between consecutive minimal models. Upon reintroduction of the dilaton couplings, it is plausible to have a vanishing value of the on-shell action. Comment: 35 pages, 4 figures |
| Databáze: | arXiv |
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