Einstein-Grisaru-Zanon gravity
- verfasst von
- Ruben Campos Delgado, Sergei V. Ketov
- Abstract
The leading (α′)3-correction to the gravitational low-energy effective action of closed (type II) superstring theory in four-spacetime dimensions defines the Einstein-Grisaru-Zanon gravity action that is applied for a calculation of the leading corrections to the Schwarzschild solution and the Hubble function in the Friedmann-Lemaitre-Robertson-Walker universe, in the first order with respect to the effective string-generated coupling. The solutions found are compared to the corresponding solutions in the Einstein-Bel-Robinson gravity that also modifies the Einstein gravity by the terms quartic in the spacetime curvature. We consider the black hole shadows in the Einstein-Grisaru-Zanon gravity theory and derive the upper bound on the string coupling parameter from the Hawking temperature of a black hole.
- Organisationseinheit(en)
-
Institut für Theoretische Physik
- Externe Organisation(en)
-
Tokyo Metropolitan University
Tomsk Polytechnic University
University of Tokyo (UTokyo)
- Typ
- Letter
- Journal
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- Band
- 855
- Anzahl der Seiten
- 5
- ISSN
- 0370-2693
- Publikationsdatum
- 08.2024
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Kern- und Hochenergiephysik
- Elektronische Version(en)
-
https://doi.org/10.1016/j.physletb.2024.138811 (Zugang:
Offen)
