Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory
Abstract We study string loop corrections to the gravity kinetic terms in type IIB com- pactifications on Calabi-Yau threefolds or their orbifold limits, in the presence of D7-branes and orientifold planes. We show that they exhibit in general a logarithmic behaviour in the large volume limit transv...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-01-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2020)149 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832586131701497856 |
|---|---|
| author | Ignatios Antoniadis Yifan Chen George K. Leontaris |
| author_facet | Ignatios Antoniadis Yifan Chen George K. Leontaris |
| author_sort | Ignatios Antoniadis |
| collection | DOAJ |
| description | Abstract We study string loop corrections to the gravity kinetic terms in type IIB com- pactifications on Calabi-Yau threefolds or their orbifold limits, in the presence of D7-branes and orientifold planes. We show that they exhibit in general a logarithmic behaviour in the large volume limit transverse to the D7-branes, induced by a localised four-dimensional Einstein-Hilbert action that appears at a lower order in the closed string sector, found in the past. Here, we compute the coefficient of the logarithmic corrections and use them to provide an explicit realisation of a mechanism for Kähler moduli stabilisation that we have proposed recently, which does not rely on non-perturbative effects and lead to de Sit- ter vacua. Our result avoids no-go theorems of perturbative stabilisation due to runaway potentials, in a way similar to the Coleman-Weinberg mechanism, and provides a counter example to one of the swampland conjectures concerning de Sitter vacua in quantum grav- ity, once string loop effects are taken into account; it thus paves the way for embedding the Standard Model of particle physics and cosmology in string theory. |
| format | Article |
| id | doaj-art-6dac21add5764cbbbc2cad602c79fb89 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-6dac21add5764cbbbc2cad602c79fb892025-01-26T12:11:34ZengSpringerOpenJournal of High Energy Physics1029-84792020-01-012020112010.1007/JHEP01(2020)149Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theoryIgnatios Antoniadis0Yifan Chen1George K. Leontaris2Laboratoire de Physique Théorique et Hautes Énergies — LPTHE, Sorbonne Université, CNRSLaboratoire de Physique Théorique et Hautes Énergies — LPTHE, Sorbonne Université, CNRSPhysics Department, University of IoanninaAbstract We study string loop corrections to the gravity kinetic terms in type IIB com- pactifications on Calabi-Yau threefolds or their orbifold limits, in the presence of D7-branes and orientifold planes. We show that they exhibit in general a logarithmic behaviour in the large volume limit transverse to the D7-branes, induced by a localised four-dimensional Einstein-Hilbert action that appears at a lower order in the closed string sector, found in the past. Here, we compute the coefficient of the logarithmic corrections and use them to provide an explicit realisation of a mechanism for Kähler moduli stabilisation that we have proposed recently, which does not rely on non-perturbative effects and lead to de Sit- ter vacua. Our result avoids no-go theorems of perturbative stabilisation due to runaway potentials, in a way similar to the Coleman-Weinberg mechanism, and provides a counter example to one of the swampland conjectures concerning de Sitter vacua in quantum grav- ity, once string loop effects are taken into account; it thus paves the way for embedding the Standard Model of particle physics and cosmology in string theory.https://doi.org/10.1007/JHEP01(2020)149Superstring VacuaD-branesFlux compactifications |
| spellingShingle | Ignatios Antoniadis Yifan Chen George K. Leontaris Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory Journal of High Energy Physics Superstring Vacua D-branes Flux compactifications |
| title | Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory |
| title_full | Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory |
| title_fullStr | Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory |
| title_full_unstemmed | Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory |
| title_short | Logarithmic loop corrections, moduli stabilisation and de Sitter vacua in string theory |
| title_sort | logarithmic loop corrections moduli stabilisation and de sitter vacua in string theory |
| topic | Superstring Vacua D-branes Flux compactifications |
| url | https://doi.org/10.1007/JHEP01(2020)149 |
| work_keys_str_mv | AT ignatiosantoniadis logarithmicloopcorrectionsmodulistabilisationanddesittervacuainstringtheory AT yifanchen logarithmicloopcorrectionsmodulistabilisationanddesittervacuainstringtheory AT georgekleontaris logarithmicloopcorrectionsmodulistabilisationanddesittervacuainstringtheory |