Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Pablo A. Cano"'
Autor:
Pablo A. Cano
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139059- (2024)
We show that there is a fundamental flaw in the application of modified gravity theories in cosmology, taking f(R) gravity as a paradigmatic example. This theory contains a scalar degree of freedom that couples to the matter stress-energy tensor but
Externí odkaz:
https://doaj.org/article/159124cd4eab47cf863d019de0bcd9c8
Autor:
Pablo A. Cano, Marina David
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-40 (2024)
Abstract Higher-derivative corrections in the AdS/CFT correspondence allow us to capture finer details of the dual CFT and to explore the holographic dictionary beyond the infinite N and strong coupling limits. Following an effective field theory app
Externí odkaz:
https://doaj.org/article/2c825d22f2fa45b5b77a2c740e2213a3
Autor:
Pablo A. Cano, Marina David
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-40 (2023)
Abstract We investigate higher derivative corrections to the extremal Kerr black hole in the context of heterotic string theory with α′ corrections and of a cubic-curvature extension of general relativity. By analyzing the near-horizon extremal ge
Externí odkaz:
https://doaj.org/article/c057b18621334d2c8ee040ce08d720ca
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-41 (2022)
Abstract We compute the first-order α′ corrections of the non-extremal Strominger-Vafa black hole and its non-supersymmetric counterparts in the framework of the Bergshoeff-de Roo formulation of the heterotic superstring effective action. The solu
Externí odkaz:
https://doaj.org/article/a802645a3ec94832841ef1a9802cbeb3
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-42 (2022)
Abstract We consider a broad family of higher-derivative extensions of four-dimensional Einstein gravity and study the multipole moments of rotating black holes therein. We carefully show that the various definitions of multipoles carry over from gen
Externí odkaz:
https://doaj.org/article/8dfa5eff7ec24e9589478a417b75b0bc
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-83 (2022)
Abstract We carry out an extensive study of the holographic aspects of any-dimensional higher-derivative Einstein-Maxwell theories in a fully analytic and non-perturbative fashion. We achieve this by introducing the d-dimensional version of Electroma
Externí odkaz:
https://doaj.org/article/6a002e437e05410c9e22cf320cf6422b
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-46 (2022)
Abstract We study extremal 5- and 4-dimensional black hole solutions of the Heterotic Superstring effective action at first order in α′ with, respectively, 3 and 4 charges of arbitrary signs. For a particular choice of the relative signs of these
Externí odkaz:
https://doaj.org/article/fbcfbd277e6d4e819e9fd00739281916
Autor:
Pablo A. Cano, Ángel Murcia
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-39 (2021)
Abstract We investigate higher-derivative extensions of Einstein-Maxwell theory that are invariant under electromagnetic duality rotations, allowing for non-minimal couplings between gravity and the gauge field. Working in a derivative expansion of t
Externí odkaz:
https://doaj.org/article/20f55cbe72e549879cb7a1569a4b5744
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-48 (2021)
Abstract We review and extend results on higher-curvature corrections to different configurations describing a superposition of heterotic strings, KK monopoles, solitonic 5-branes and momentum waves. Depending on which sources are present, the low-en
Externí odkaz:
https://doaj.org/article/8ac5c3a3e1d2414e8cefdbd2fdb0a5d1
Autor:
Pablo A. Cano, Ángel Murcia
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-54 (2020)
Abstract We identify a set of higher-derivative extensions of Einstein-Maxwell theory that allow for spherically symmetric charged solutions characterized by a single metric function f (r) = −g tt = 1/g rr . These theories are a non-minimally coupl
Externí odkaz:
https://doaj.org/article/bd8355734f244fe988b40f51b078dfcb