Classical de Sitter solutions in three dimensions without tachyons?
Abstract We continue the study of compactifications of massive IIA supergravity on G2 orientifolds and demonstrate that breaking supersymmetry with anti-D2 and anti-D6 sources leads to 3d theories for which the typical tachyons haunting classical dS solutions can be absent. However for a concrete to...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-10-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-08525-3 |
| _version_ | 1818335154701074432 |
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| author | Fotis Farakos George Tringas Thomas Van Riet |
| author_facet | Fotis Farakos George Tringas Thomas Van Riet |
| author_sort | Fotis Farakos |
| collection | DOAJ |
| description | Abstract We continue the study of compactifications of massive IIA supergravity on G2 orientifolds and demonstrate that breaking supersymmetry with anti-D2 and anti-D6 sources leads to 3d theories for which the typical tachyons haunting classical dS solutions can be absent. However for a concrete torus example the meta-stable dS window disappears after a quantization of fluxes and charges. We discuss the prospects of more general G2 compactifications and argue that they could potentially alleviate the tachyon problem by introducing larger tadpole numbers and warped throats. However, exactly those ingredients then seem to push the vacuum towards the brink of perturbative brane–flux decay in the open string sector. This is either a remarkable illustration of the no-dS swampland conjecture or such vacua live in very difficult to control regions of parameter space. |
| first_indexed | 2024-12-13T14:18:55Z |
| format | Article |
| id | doaj.art-4b3b4cbaa6e54c9998de11c5e2f71980 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-13T14:18:55Z |
| publishDate | 2020-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-4b3b4cbaa6e54c9998de11c5e2f719802022-12-21T23:42:09ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-10-01801011410.1140/epjc/s10052-020-08525-3Classical de Sitter solutions in three dimensions without tachyons?Fotis Farakos0George Tringas1Thomas Van Riet2Instituut voor Theoretische Fysica, K.U. LeuvenPhysics Division, National Technical University of AthensInstituut voor Theoretische Fysica, K.U. LeuvenAbstract We continue the study of compactifications of massive IIA supergravity on G2 orientifolds and demonstrate that breaking supersymmetry with anti-D2 and anti-D6 sources leads to 3d theories for which the typical tachyons haunting classical dS solutions can be absent. However for a concrete torus example the meta-stable dS window disappears after a quantization of fluxes and charges. We discuss the prospects of more general G2 compactifications and argue that they could potentially alleviate the tachyon problem by introducing larger tadpole numbers and warped throats. However, exactly those ingredients then seem to push the vacuum towards the brink of perturbative brane–flux decay in the open string sector. This is either a remarkable illustration of the no-dS swampland conjecture or such vacua live in very difficult to control regions of parameter space.http://link.springer.com/article/10.1140/epjc/s10052-020-08525-3 |
| spellingShingle | Fotis Farakos George Tringas Thomas Van Riet Classical de Sitter solutions in three dimensions without tachyons? European Physical Journal C: Particles and Fields |
| title | Classical de Sitter solutions in three dimensions without tachyons? |
| title_full | Classical de Sitter solutions in three dimensions without tachyons? |
| title_fullStr | Classical de Sitter solutions in three dimensions without tachyons? |
| title_full_unstemmed | Classical de Sitter solutions in three dimensions without tachyons? |
| title_short | Classical de Sitter solutions in three dimensions without tachyons? |
| title_sort | classical de sitter solutions in three dimensions without tachyons |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-08525-3 |
| work_keys_str_mv | AT fotisfarakos classicaldesittersolutionsinthreedimensionswithouttachyons AT georgetringas classicaldesittersolutionsinthreedimensionswithouttachyons AT thomasvanriet classicaldesittersolutionsinthreedimensionswithouttachyons |