Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Keiju Murata"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-22 (2024)
Abstract We demonstrate the turbulent dynamics of the Nambu-Goto open string in the AdS3 spacetime. While the motion of a classical closed string in AdS is known to be integrable, the integrability of an open string motion depends on the boundary con
Externí odkaz:
https://doaj.org/article/bdaf63cf6abb49159270065be6ccfa3b
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-31 (2024)
Abstract We study the origin of turbulence on the string worldsheet with boundaries laid in anti de Sitter (AdS) spacetime. While the classical motion of a single closed string in AdS is integrable, it has recently been recognized that weak turbulenc
Externí odkaz:
https://doaj.org/article/e6895f3656ba47128d49ef2c84b73bed
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-41 (2023)
Abstract Recently, Krylov complexity was proposed as a measure of complexity and chaoticity of quantum systems. We consider the stadium billiard as a typical example of the quantum mechanical system obtained by quantizing a classically chaotic system
Externí odkaz:
https://doaj.org/article/a99e2405799243fc9582bb31493f4727
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-17 (2023)
Abstract We find, in the AdS/CFT, a source on the boundary which generates one wave packet drawing a null geodesic inside the bulk. Once such a wave packet dives into the bulk, it comes back to the boundary after a specific time, at which the expecta
Externí odkaz:
https://doaj.org/article/5e0bd435da4c49589828cc37530f49d1
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-55 (2023)
Abstract We construct a cohomogeneity-1 helical black string in six-dimensional Einstein gravity. The helical solution branches from the onset of the gravitational superradiant instability of the equal-spinning Myers-Perry black string. The isometry
Externí odkaz:
https://doaj.org/article/45f962b85cdd4c06b53266848d0bec27
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-35 (2023)
Abstract We construct novel black strings that are neither time-translation invariant, nor axisymmetric, nor translationally invariant in the string direction, but nevertheless have a helical Killing vector field. These solutions branch from the supe
Externí odkaz:
https://doaj.org/article/c54c8d45f25b40a98b7aafdacc3b9fda
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-36 (2023)
Abstract We investigate the effect of superradiant scattering of gravitational perturbations on the stability of rotating black strings, focusing on the six dimensional equal-spinning Myers-Perry black string. We find that rapidly rotating black stri
Externí odkaz:
https://doaj.org/article/49939d2b4288458cbe517fdc7c41860f
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 10, Pp 1-24 (2022)
Abstract Superradiance is known as a wave amplification process caused by rotating or charged black holes. We argue that the superradiance of stationary black holes in asymptotically AdS spacetimes can be characterized by the ability of energy extrac
Externí odkaz:
https://doaj.org/article/ed0bc6078d8a40f5a7366f7f96bdf02f
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-30 (2021)
Abstract We propose a way to observe the photon ring of the asymptotically anti-de Sitter black hole dual to a superconductor on the two-dimensional sphere. We consider the electric current of the superconductor under the localized time-periodic exte
Externí odkaz:
https://doaj.org/article/955cef94b09d43c6ab27ac10e338296b
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-38 (2021)
Abstract We study rotating global AdS solutions in five-dimensional Einstein gravity coupled to a multiplet complex scalar within a cohomogeneity-1 ansatz. The onset of the gravitational and scalar field superradiant instabilities of the Myers-Perry-
Externí odkaz:
https://doaj.org/article/e570a60aa5b34c799cce149a9a471d05