Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Edelstein, José"'
Incorporating higher curvature terms into gravity theories modifies the classical field equations, potentially leading to theoretical issues like Shapiro time advancements that violate the Camanho, Edelstein, Maldacena, and Zhiboedov (CEMZ) causality
Externí odkaz:
http://arxiv.org/abs/2409.16935
We study the particle content of higher derivative theories of gravity built with contractions of the Riemann tensor and its covariant derivatives. In the absence of the latter, there is a family of theories exhibiting an Einsteinian spectrum known a
Externí odkaz:
http://arxiv.org/abs/2204.13567
Publikováno v:
J. High Energ. Phys. 2022, 188 (2022)
We study the condensation of a charged scalar field in a $(3+1)$-dimensional asymptotically AdS background in the context of Einsteinian cubic gravity, featuring a holographic superconductor with higher curvature corrections corresponding to a CFT wi
Externí odkaz:
http://arxiv.org/abs/2202.05781
Autor:
Araya, Ignacio J., Edelstein, Jose D., Sanchez, Alberto Rivadulla, Rodriguez, David Vazquez, Lopez, Alejandro Vilar
We implement a universal method for renormalizing AdS gravity actions applicable to arbitrary higher curvature theories in up to five dimensions. The renormalization procedure considers the extrinsic counterterm for Einstein-AdS gravity given by the
Externí odkaz:
http://arxiv.org/abs/2108.01126
Classifying consistent effective field theories for the gravitational interaction has recently been the subject of intense research. Demanding the absence of causality violation in high energy graviton scattering processes has led to a hierarchy of c
Externí odkaz:
http://arxiv.org/abs/2107.07424
Autor:
Prado, Xabier, Domínguez, José Manuel, Area, Iván, Edelstein, José, Mira, Jorge, Paredes, Ángel
This work analyzes the difficulties in learning and teaching Einstein's theory of special relativity. An extensive bibliographic review has been performed, considering articles published in the most relevant journals on science education, which were
Externí odkaz:
http://arxiv.org/abs/2012.15149
Within General Relativity, a minimally coupled scalar field governed by a quadratic potential is able to produce an accelerated expansion of the universe provided its value and excursion are larger than the Planck scale. This is an archetypical examp
Externí odkaz:
http://arxiv.org/abs/2007.07651
We revisit the recently proposed mechanism of Geometric Inflation. On general grounds, we show that obtaining the right amount of inflation demands an exceedingly large initial energy density. We introduce a scalar field and study the combined action
Externí odkaz:
http://arxiv.org/abs/2006.10007
We investigate the phase diagram of a general class of $4$-dimensional exact regular hairy planar black holes. For some particular values of the parameters in the moduli potential, these solutions can be embedded in $\omega$-deformed $\mathcal{N}=8$
Externí odkaz:
http://arxiv.org/abs/1912.03318
We examine a two parameter family of gravitational actions which contains higher-derivative terms. These are such that the entire action is invariant under corrected T-duality rules, which we derive explicitly. Generically this action does not descri
Externí odkaz:
http://arxiv.org/abs/1903.05554