Einstein-Grisaru-Zanon gravity; Physics Letters B; Vol. 855
| Parent link: | Physics Letters B.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 855.— 2024.— Article number 138811, 5 p. |
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| Sažetak: | Title screen 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 Текстовый файл AM_Agreement |
| Jezik: | engleski |
| Izdano: |
2024
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| Teme: | |
| Online pristup: | https://doi.org/10.1016/j.physletb.2024.138811 |
| Format: | Elektronički Poglavlje knjige |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=675432 |
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| 200 | 1 | |a Einstein-Grisaru-Zanon gravity |f Ruben Campos Delgado, Sergei V. Ketov | |
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| 330 | |a 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 | ||
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