dS spaces and brane worlds in exotic string theories
| Autor: | Matthias Traube, Ralph Blumenhagen, Lorenz Schlechter, Max Brinkmann, Andriana Makridou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
High Energy Physics - Theory Nuclear and High Energy Physics 010308 nuclear & particles physics High Energy Physics::Lattice Superstring theory FOS: Physical sciences Swampland 01 natural sciences String (physics) Theoretical physics High Energy Physics::Theory Superstrings and Het- erotic Strings High Energy Physics - Theory (hep-th) De Sitter universe Conformal Field Models in String Theory D-branes 0103 physical sciences Euclidean geometry Brane cosmology lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Gauge theory Brane 010306 general physics |
| Zdroj: | Journal of High Energy Physics, Vol 2020, Iss 6, Pp 1-50 (2020) Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP06(2020)077 |
| Popis: | We investigate string-phenomenological questions of Hull's exotic superstring theories with Euclidean strings/branes and multiple times. These are known to be plagued by pathologies like the occurrence of ghosts. On the other hand, these theories exhibit de Sitter solutions. Our special focus lies on the question of the coexistence of such de Sitter solutions and ghost-free brane worlds. To this end, the world-sheet CFT description of Euclidean fundamental strings is generalized to include also the open string/D-brane sector. Demanding that in the "observable" gauge theory sector the gauge fields themselves are non-ghosts, a generalization of the dS swampland conjecture is found. 56 pages; v2: new subsection reviewing previous results, further references added |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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