The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity
The Weak Gravity Conjecture states that in any consistent theory of quantum gravity in the landscape of string theory, the repulsive force mediated by a U(1) gauge field must be stronger than the attractive force of gravity. In this work, we calculate quantum gravitational corrections to the charge-...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325001637 |
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| author | Tommaso Antonelli Xavier Calmet |
| author_facet | Tommaso Antonelli Xavier Calmet |
| author_sort | Tommaso Antonelli |
| collection | DOAJ |
| description | The Weak Gravity Conjecture states that in any consistent theory of quantum gravity in the landscape of string theory, the repulsive force mediated by a U(1) gauge field must be stronger than the attractive force of gravity. In this work, we calculate quantum gravitational corrections to the charge-to-mass ratio of extremal Reissner-Nordström black holes, using the Vilkovisky-deWitt unique effective action approach, since this ratio provides a discriminant to select low-energy effective theories of quantum gravity that fulfill the conjecture. We find that depending on the values of the Wilson coefficients of the effective action, some UV complete theories may fulfill the conjecture, while others may not. |
| format | Article |
| id | doaj-art-db5cd1bf96c247468d92738eb6f8df7c |
| institution | OA Journals |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-db5cd1bf96c247468d92738eb6f8df7c2025-08-20T02:17:26ZengElsevierPhysics Letters B0370-26932025-05-0186413940310.1016/j.physletb.2025.139403The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravityTommaso Antonelli0Xavier Calmet1Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, United KingdomCorresponding author.; Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, United KingdomThe Weak Gravity Conjecture states that in any consistent theory of quantum gravity in the landscape of string theory, the repulsive force mediated by a U(1) gauge field must be stronger than the attractive force of gravity. In this work, we calculate quantum gravitational corrections to the charge-to-mass ratio of extremal Reissner-Nordström black holes, using the Vilkovisky-deWitt unique effective action approach, since this ratio provides a discriminant to select low-energy effective theories of quantum gravity that fulfill the conjecture. We find that depending on the values of the Wilson coefficients of the effective action, some UV complete theories may fulfill the conjecture, while others may not.http://www.sciencedirect.com/science/article/pii/S0370269325001637 |
| spellingShingle | Tommaso Antonelli Xavier Calmet The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity Physics Letters B |
| title | The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity |
| title_full | The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity |
| title_fullStr | The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity |
| title_full_unstemmed | The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity |
| title_short | The weak gravity conjecture in the Vilkovisky-DeWitt effective action of quantum gravity |
| title_sort | weak gravity conjecture in the vilkovisky dewitt effective action of quantum gravity |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325001637 |
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