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| Autori principali: | , , , , |
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| Natura: | Preprint |
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2023
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| Accesso online: | https://arxiv.org/abs/2303.12843 |
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| _version_ | 1866910633435332608 |
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| author | Alexander, Stephon Dasgupta, Keshav Maji, Archana Ramadevi, P. Tatar, Radu |
| author_facet | Alexander, Stephon Dasgupta, Keshav Maji, Archana Ramadevi, P. Tatar, Radu |
| contents | Recent no-go theorems have ruled out four-dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well-defined Wilsonian effective action and other related phenomena also appear to rule out such time-dependent vacua with de Sitter isometries, even in the presence of quantum corrections. In this note, we argue that a four-dimensional de Sitter space can still exist in SO(32) heterotic string theory as a Glauber-Sudarshan state, i.e. as a coherent state, over a supersymmetric Minkowski background, albeit within a finite temporal domain. Borel resummation and resurgence play a crucial role in constructing such a state in the Hilbert space of heterotic theory governed entirely by the IR degrees of freedom. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_12843 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | de Sitter State in Heterotic String Theory Alexander, Stephon Dasgupta, Keshav Maji, Archana Ramadevi, P. Tatar, Radu High Energy Physics - Theory General Relativity and Quantum Cosmology Recent no-go theorems have ruled out four-dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well-defined Wilsonian effective action and other related phenomena also appear to rule out such time-dependent vacua with de Sitter isometries, even in the presence of quantum corrections. In this note, we argue that a four-dimensional de Sitter space can still exist in SO(32) heterotic string theory as a Glauber-Sudarshan state, i.e. as a coherent state, over a supersymmetric Minkowski background, albeit within a finite temporal domain. Borel resummation and resurgence play a crucial role in constructing such a state in the Hilbert space of heterotic theory governed entirely by the IR degrees of freedom. |
| title | de Sitter State in Heterotic String Theory |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2303.12843 |