Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Sybesma, Watse"'
Autor:
Harksen, Matthias, Sybesma, Watse
We examine the mass-gap of a four-dimensional near-extremal Lifshitz black hole that arises as a solution to a low energy effective theory of heterotic string theory. The effective two-dimensional gravitational description retains features of the Lif
Externí odkaz:
http://arxiv.org/abs/2408.15336
We study shape deformations of two-dimensional end-of-the-world (ETW) branes, such as those in bottom-up models of two-dimensional holographic boundary conformal field theories (BCFT), and derive an action for the theory of brane deformations in any
Externí odkaz:
http://arxiv.org/abs/2404.07260
Starting from the Polyakov action we consider two distinct Carroll limits in target space, keeping the string worldsheet relativistic. The resulting magnetic and chiral Carroll string models exhibit different symmetries and dynamics. Both models have
Externí odkaz:
http://arxiv.org/abs/2403.01984
We study various aspects of the Carroll limit in which the speed of light is sent to zero. A large part of this paper is devoted to the quantization of Carroll field theories. We show that these exhibit infinite degeneracies in the spectrum and may s
Externí odkaz:
http://arxiv.org/abs/2307.06827
Autor:
Patramanis, Dimitrios, Sybesma, Watse
We investigate operator growth in quantum systems with two-dimensional Schr\"odinger group symmetry by studying the Krylov complexity. While feasible for semisimple Lie algebras, cases such as the Schr\"odinger algebra which is characterized by a sem
Externí odkaz:
http://arxiv.org/abs/2306.03133
Autor:
Sybesma, Watse
We consider a charged Lifshitz black hole in the large transverse dimension limit. In this setup, the dynamics near the black hole horizon are shown to be effectively governed by a family of two-dimensional models of dilaton gravity depending on the
Externí odkaz:
http://arxiv.org/abs/2211.07927
Publikováno v:
Aalsma, L., Aguilar-Gutierrez, S.E. & Sybesma, W. An outsider's perspective on information recovery in de Sitter space. J. High Energ. Phys. 2023, 129 (2023)
Entanglement islands play a crucial role in our understanding of how Hawking radiation encodes information in a black hole, but their relevance in cosmological spacetimes is less clear. In this paper, we continue our investigation of information reco
Externí odkaz:
http://arxiv.org/abs/2210.12176
Publikováno v:
SciPost Phys. 14, 086 (2023)
We construct two distinct actions for scalar fields that are invariant under local Carroll boosts and Weyl transformations. Conformal Carroll field theories were recently argued to be related to the celestial holography description of asymptotically
Externí odkaz:
http://arxiv.org/abs/2207.03468
The island formula -- an extremization prescription for generalized entropy -- is known to result in a unitary Page curve for the entropy of Hawking radiation. This semi-classical entropy formula has been derived for Jackiw-Teitelboim (JT) gravity co
Externí odkaz:
http://arxiv.org/abs/2111.06912
Carroll symmetry arises from Poincar\'e symmetry upon taking the limit of vanishing speed of light. We determine the constraints on the energy-momentum tensor implied by Carroll symmetry and show that for energy-momentum tensors of perfect fluid form
Externí odkaz:
http://arxiv.org/abs/2110.02319