Zobrazeno 1 - 10
of 225
pro vyhledávání: '"Arnab Kundu"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-38 (2024)
Abstract We find classes of driven conformal field theories (CFT) in d + 1 dimensions with d > 1, whose quench and floquet dynamics can be computed exactly. The setup is suitable for studying periodic drives, consisting of square pulse protocols for
Externí odkaz:
https://doaj.org/article/0a0d05ea82294dbb832133265cc863b6
Autor:
Suman Das, Arnab Kundu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-33 (2024)
Abstract In this article, building on our recent investigations and motivated by the fuzzball-paradigm, we explore normal modes of a probe massless scalar field in the rotating BTZ-geometry in an asymptotically AdS spacetime and correspondingly obtai
Externí odkaz:
https://doaj.org/article/66d1c4a1c3614793b7cdc739a2991abe
Publikováno v:
International Journal of Medical Students, Vol 12, Iss 2 (2024)
Background: Disseminated tuberculosis (TB) is the presence of two or more noncontiguous sites resulting from hematogenous dissemination of Mycobacterium tuberculosis. We report a case of disseminated TB with testicular involvement. Case: A 21-year-
Externí odkaz:
https://doaj.org/article/da4e78ede928456cb851a1a33c4ca4a6
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-15 (2024)
Abstract 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 facto
Externí odkaz:
https://doaj.org/article/1e0ba4a0c21e441d8ccda1d37e4f53e5
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-27 (2023)
Abstract Black holes are believed to have the fast scrambling properties of random matrices. If the fuzzball proposal is to be a viable model for quantum black holes, it should reproduce this expectation. This is considered challenging, because it is
Externí odkaz:
https://doaj.org/article/35c100664e724780928ff42f4f8f2f5e
Publikováno v:
Exploratory Animal and Medical Research, Vol 13, Iss Ethnomedicine Special, Pp 133-140 (2023)
Ageratina adenophora and Chromolaena odorata belonging to the family Asteraceae are the two most noxious invasive alien plant species in the natural forests of Mizoram, a part of the Indo-Burma biodiversity hotspot. These two noxious invasive speci
Externí odkaz:
https://doaj.org/article/35afe81b33ce402395806a8e2f4a5145
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-24 (2023)
Abstract We compute the Krylov Complexity of a light operator O $$ \mathcal{O} $$ L in an eigenstate of a 2d CFT at large central charge c. The eigenstate corresponds to a primary operator O $$ \mathcal{O} $$ H under the state-operator correspondence
Externí odkaz:
https://doaj.org/article/d2ad5914514d4f2f9a47f3d27f4c785e
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-33 (2023)
Abstract We consider a black hole with a stretched horizon as a toy model for a fuzzball microstate. The stretched horizon provides a cut-off, and therefore one can determine the normal (as opposed to quasi-normal) modes of a probe scalar in this geo
Externí odkaz:
https://doaj.org/article/a9162ac2f6364579bb13d3912f558704
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 8, Pp 1-30 (2022)
Abstract We compute Out-of-Time-Order correlators (OTOCs) for conformal field theories (CFTs) subjected to either continuous or discrete periodic drive protocols. This is achieved by an appropriate analytic continuation of the stroboscopic time. Afte
Externí odkaz:
https://doaj.org/article/d62c996ed3cb4b1eb6b7e1f1bf428f5b
Autor:
Suchetan Das, Bobby Ezhuthachan, Arnab Kundu, Somnath Porey, Baishali Roy, Krishnendu Sengupta
Publikováno v:
SciPost Physics, Vol 15, Iss 5, p 202 (2023)
We show that a dynamical transition from a non-heating to a heating phase of a periodic $SL(2,\mathbb{R})$ driven two dimensional conformal field theory (CFT) with a large central charge is perceived as a first order transition by a bulk brane embedd
Externí odkaz:
https://doaj.org/article/535da2efa0c74fca94f65926a89ae74e