Zobrazeno 1 - 10
of 286
pro vyhledávání: '"Krishnan, Chethan"'
Autor:
Krishnan, Chethan, Pathak, Pradipta S.
We identify a horizon-skimming limit under which wave equations around large classes of black holes allow a determination of their low-lying (quasi-)degenerate normal modes. Building on our recent work, we use these ``quantum horizon" normal modes to
Externí odkaz:
http://arxiv.org/abs/2410.00732
Autor:
Burman, Vaibhav, Krishnan, Chethan
In arXiv:2312.14108, we argued that a sliver at the black hole mass in the Hilbert space of a quantum field theory on an AdS black hole with a stretched horizon, has many desirable features of black hole microstates. A key observation is that the str
Externí odkaz:
http://arxiv.org/abs/2409.05850
Autor:
Krishnan, Chethan, Mondol, Ranjini
It has been suggested that black hole microstates in string theory may have "no interiors". The arguments of arXiv:2312.14108 suggest that even if this were the case, conventional bulk EFT should be valid at the horizon for black holes that are not t
Externí odkaz:
http://arxiv.org/abs/2407.11952
Autor:
Krishnan, Chethan, Pathak, Pradipta S.
In 1984, 't Hooft famously used a brickwall (aka stretched horizon) to compute black hole entropy up to a numerical pre-factor. This calculation is sometimes interpreted as due to the entanglement of the modes across the horizon, but more operational
Externí odkaz:
http://arxiv.org/abs/2312.14109
Recent observations on type III algebras in AdS/CFT raise the possibility that smoothness of the black hole horizon is an emergent feature of the large-$N$ limit. In this paper, we present a $bulk$ model for the finite-$N$ mechanism underlying this t
Externí odkaz:
http://arxiv.org/abs/2312.14108
Autor:
Ghosh, Abir, Krishnan, Chethan
Defining finite entanglement entropy for a subregion in quantum field theory requires the introduction of two logically independent scales: an IR scale that controls the size of the subregion, and a UV cut-off. In AdS/CFT, the IR scale is the AdS len
Externí odkaz:
http://arxiv.org/abs/2311.16056
Autor:
Krishnan, Chethan, Mohan, Vyshnav
Opinion is divided about the nature of state dependence in the black hole interior. Some argue that it is a necessary feature, while others argue it is a bug. In this paper, we consider the extended half-sided modular translation $U(s_0)$ (with $s_0
Externí odkaz:
http://arxiv.org/abs/2310.05912
We discuss conditions under which a deterministic sequence of real numbers, interpreted as the set of eigenvalues of a Hamiltonian, can exhibit features usually associated to random matrix spectra. A key diagnostic is the spectral form factor (SFF) -
Externí odkaz:
http://arxiv.org/abs/2308.11704
Dipole cosmology is the maximally Copernican generalization of the FLRW paradigm that can incorporate bulk flows in the cosmic fluid. In this paper, we first discuss how multiple fluid components with independent flows can be realized in this set up.
Externí odkaz:
http://arxiv.org/abs/2305.16177
Autor:
Krishnan, Chethan, Pereira, Jude
The double null form of the Schwarzschild metric is usually arrived at by demanding Eddington-Finkelstein (EF) conditions at the horizon. This leads to certain logarithmic fall-offs that are too slow along null directions at $\mathscr{I}$, resulting
Externí odkaz:
http://arxiv.org/abs/2304.01607