Zobrazeno 1 - 10
of 424
pro vyhledávání: '"García García, Antonio"'
Publikováno v:
Phys. Rev. B 110, 134307(2024)
We identify a time crystal phase characterized by a frequency half of the driving frequency in disordered superconductors by employing the time dependent Bogoliubov-de Gennes formalism at zero temperature with a periodically driven coupling constant.
Externí odkaz:
http://arxiv.org/abs/2405.14216
A distinct feature of Hermitian quantum chaotic dynamics is the exponential increase of certain out-of-time-order-correlation (OTOC) functions around the Ehrenfest time with a rate given by a Lyapunov exponent. Physically, the OTOCs describe the grow
Externí odkaz:
http://arxiv.org/abs/2403.12359
Quenched dynamics and pattern formation in clean and disordered Bogoliubov-de Gennes superconductors
Autor:
Fan, Bo, García-García, Antonio M.
Publikováno v:
SciPost Phys. 17, 049 (2024)
We study the quench dynamics of a two dimensional superconductor in a lattice of size up to $200\times 200$ employing the self-consistent time dependent Bogoliubov-de Gennes (BdG) formalism. In the clean limit, the dynamics of the order parameter for
Externí odkaz:
http://arxiv.org/abs/2401.00372
Publikováno v:
Phys. Rev. D 109, 105017 (2024)
Studies of many-body non-Hermitian parity-time (PT)-symmetric quantum systems are attracting a lot of interest due to their relevance in research areas ranging from quantum optics and continuously monitored dynamics to Euclidean wormholes in quantum
Externí odkaz:
http://arxiv.org/abs/2311.15677
The identification, description, and classification of topological features is an engine of discovery and innovation in several fields of physics. This research encompasses a broad variety of systems, from the integer and fractional Chern insulators
Externí odkaz:
http://arxiv.org/abs/2311.14640
The saturation of a recently proposed universal bound on the Lyapunov exponent has been conjectured to signal the existence of a gravity dual. This saturation occurs in the low temperature limit of the dense Sachdev-Ye-Kitaev (SYK) model, $N$ Majoran
Externí odkaz:
http://arxiv.org/abs/2311.00639
Publikováno v:
Phys. Rev. D 109, 046005 (2024)
Recent discoveries have highlighted the significance of replica wormholes in resolving the information paradox and establishing the unitarity of black hole evaporation. In this letter, we propose the dissipative Sachdev-Ye-Kitaev model (SYK) as a min
Externí odkaz:
http://arxiv.org/abs/2306.12571
Publikováno v:
Phys. Rev. Lett. 132, 061603 (2024)
In the infrared limit, a nearly anti-de Sitter spacetime in two dimensions (AdS$_2$) perturbed by a weak double trace deformation and a two-site $(q>2)$-body Sachdev-Ye-Kitaev (SYK) model with $N$ Majoranas and a weak $2r$-body intersite coupling sha
Externí odkaz:
http://arxiv.org/abs/2305.09663
Publikováno v:
Phys. Rev. D 107, 066007 (2023)
Spectral rigidity in Hermitian quantum chaotic systems signals the presence of dynamical universal features at timescales that can be much shorter than the Heisenberg time. We study the analog of this timescale in many-body non-Hermitian quantum chao
Externí odkaz:
http://arxiv.org/abs/2211.01650
Publikováno v:
Phys. Rev. D 107, 106006 (2023)
We study the out-of-equilibrium dynamics of a Sachdev-Ye-Kitaev (SYK) model, $N$ fermions with a $q$-body interaction of infinite range, coupled to a Markovian environment. Close to the infinite-temperature steady state, the real-time Lindbladian dyn
Externí odkaz:
http://arxiv.org/abs/2210.01695