49 citations · 199 across the 8 of their papers we have counts for
8 papers
Rényi entropies of the massless Dirac field on the torus
David Blanco, Tomás Ferreira Chase, Juan Laurnagaray +1
We compute the Rényi entropies of the massless Dirac field on the Euclidean torus (the Lorentzian cylinder at non-zero temperature) for arbitrary spatial regions. We do it by the r…
Gravity from entanglement for boundary subregions
David Blanco, Mauricio Leston, Guillem Pérez-Nadal
We explore several aspects of the relation between gravity and entanglement in the context of AdS/CFT, in the simple setting of 3 bulk dimensions. Specifically, we consider small p…
Heat kernel methods for Lifshitz theories
Andrei O. Barvinsky, Diego Blas, Mario Herrero-Valea +3
We study the one-loop covariant effective action of Lifshitz theories using the heat kernel technique. The characteristic feature of Lifshitz theories is an anisotropic scaling bet…
Anisotropic Weyl invariance
Guillem Pérez-Nadal
We consider a non-relativistic free scalar field theory with a type of anisotropic scale invariance in which the number of coordinates "scaling like time" is generically greater th…
Black hole thermodynamics, conformal couplings, and R^2 terms
Mariano Chernicoff, Mario Galante, Gaston Giribet +4
Lovelock theory provides a tractable model of higher-curvature gravity in which several questions can be studied analytically. This is the reason why, in the last years, this theor…
Effective string theory constraints on the long distance behavior of the subleading potentials
Guillem Perez-Nadal, Joan Soto
The dynamics of heavy quarkonium systems in the strong coupling regime reduces to a quantum mechanical problem with a number of potentials which may be organized in powers of 1/m,…
Backreaction from non-conformal quantum fields in de Sitter spacetime
Guillem Pérez-Nadal, Albert Roura, Enric Verdaguer
We study the backreaction on the mean field geometry due to a non-conformal quantum field in a Robertson-Walker background. In the regime of small mass and small deviation from con…
Stability of de Sitter spacetime under isotropic perturbations in semiclassical gravity
Guillem Perez-Nadal, Albert Roura, Enric Verdaguer
A spatially flat Robertson-Walker spacetime driven by a cosmological constant is non-conformally coupled to a massless scalar field. The equations of semiclassical gravity are expl…