Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Pratik Nandy"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-42 (2024)
Abstract We use Krylov complexity to study operator growth in the q-body dissipative Sachdev-Ye-Kitaev (SYK) model, where the dissipation is modeled by linear and random p-body Lindblad operators. In the large q limit, we analytically establish the l
Externí odkaz:
https://doaj.org/article/28f354bbd2b6468ca50ecf2db9e2aa25
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-30 (2023)
Abstract Continuing the previous initiatives [1, 2], we pursue the exploration of operator growth and Krylov complexity in dissipative open quantum systems. In this paper, we resort to the bi-Lanczos algorithm generating two bi-orthogonal Krylov spac
Externí odkaz:
https://doaj.org/article/6b37b360e62449088da165ee10022905
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-28 (2023)
Abstract Considering the large q expansion of the Sachdev-Ye-Kitaev (SYK) model in the two-stage limit, we compute the Lanczos coefficients, Krylov complexity, and the higher Krylov cumulants in subleading order, along with the t/q effects. The Krylo
Externí odkaz:
https://doaj.org/article/8b25d143160a44c0a253d17e3fefacf6
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 3, Pp 1-29 (2023)
Abstract We study the operator growth in open quantum systems with dephasing dissipation terms, extending the Krylov complexity formalism of [1]. Our results are based on the study of the dissipative q-body Sachdev-Ye-Kitaev (SYK q ) model, governed
Externí odkaz:
https://doaj.org/article/2bb821ead53c41ac9e2d7f9860fc0455
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-31 (2022)
Abstract Inspired by the universal operator growth hypothesis, we extend the formalism of Krylov construction in dissipative open quantum systems connected to a Markovian bath. Our construction is based upon the modification of the Liouvillian supero
Externí odkaz:
https://doaj.org/article/6c5393ba4a3b4c678f111fadef2aa11e
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 5, Pp 1-27 (2022)
Abstract In semi-classical systems, the exponential growth of the out-of-time-order correlator (OTOC) is believed to be the hallmark of quantum chaos. However, on several occasions, it has been argued that, even in integrable systems, OTOC can grow e
Externí odkaz:
https://doaj.org/article/57fc5936c62446ca9d531ad62b123213
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-34 (2022)
Abstract We discuss the interpretation of path integral optimization as a uniformization problem in even dimensions. This perspective allows for a systematical construction of the higher-dimensional path integral complexity in holographic conformal f
Externí odkaz:
https://doaj.org/article/37a3f3c35df74e9aaf3f766ddf8ffed7
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-1 (2023)
A correction to this paper has been published: https://doi.org/10.1007/JHEP04(2022)081
Externí odkaz:
https://doaj.org/article/047ef5b3c8ca4dda9f4d2556ff6c971c
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-25 (2021)
Abstract We compute the holographic subregion complexity of a radiation subsystem in a geometric secret-sharing model of Hawking radiation in the “complexity = volume” proposal. The model is constructed using multiboundary wormhole geometries in
Externí odkaz:
https://doaj.org/article/0de78d57fbd94b78954454a867acc021
Autor:
Pratik Nandy
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-23 (2021)
Abstract We study the time evolution of the excess value of capacity of entanglement between a locally excited state and ground state in free, massless fermionic theory and free Yang-Mills theory in four spacetime dimensions. Capacity has non-trivial
Externí odkaz:
https://doaj.org/article/81c3f7167aec4850b3821427a570fb31