Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Cabot, Albert"'
Dissipative many-body quantum dynamics can feature strong symmetries which give rise to conserved quantities. We discuss here how a strong symmetry in conjunction with a nonequilibrium phase transition allows to devise a protocol for measuring collec
Externí odkaz:
http://arxiv.org/abs/2407.13352
Autor:
Liu, Zong-Kai, Sun, Kong-Hao, Cabot, Albert, Carollo, Federico, Zhang, Jun, Zhang, Zheng-Yuan, Zhang, Li-Hua, Liu, Bang, Han, Tian-Yu, Li, Qing, Ma, Yu, Chen, Han-Chao, Lesanovsky, Igor, Ding, Dong-Sheng, Shi, Bao-Sen
Publikováno v:
Phys. Rev. Research 6, L032069(2024)
Quantum many-body systems near phase transitions respond collectively to externally applied perturbations. We explore this phenomenon in a laser-driven dissipative Rydberg gas that is tuned to a bistable regime. Here two metastable phases coexist, wh
Externí odkaz:
http://arxiv.org/abs/2402.04815
Publikováno v:
PhysRevLett.133.073603 (2024)
We propose a protocol for the amplified detection of low-intensity terahertz radiation using Rydberg tweezer arrays. The protocol offers single photon sensitivity together with a low dark count rate. It is split into two phases: during a sensing phas
Externí odkaz:
http://arxiv.org/abs/2311.16365
We show a dissipative phase transition in a driven nonlinear quantum oscillator in which a discrete time-translation symmetry is spontaneously broken in two different ways. The corresponding regimes display either discrete or incommensurate time-crys
Externí odkaz:
http://arxiv.org/abs/2308.12080
A boundary time-crystal is a quantum many-body system whose dynamics is governed by the competition between coherent driving and collective dissipation. It is composed of $N$ two-level systems and features a transition between a stationary phase and
Externí odkaz:
http://arxiv.org/abs/2307.13277
Recent experiments with dense laser-driven atomic gases [G. Ferioli et al., arXiv:2207.10361 (2022)] have realized a many-body system which in the thermodynamic limit yields a so-called boundary time-crystal. This state of matter is stabilized by the
Externí odkaz:
http://arxiv.org/abs/2212.06460
We consider the non-equilibrium behavior of a central spin system where the central spin is periodically reset to its ground state. The quantum mechanical evolution under this effectively dissipative dynamics is described by a discrete-time quantum m
Externí odkaz:
http://arxiv.org/abs/2205.11263
Publikováno v:
New J. Phys. 23 103017 (2021)
Quantum van der Pol oscillators are driven-dissipative systems displaying quantum synchronization phenomena. When forced by a squeezed drive, the frequency adjusts to half of the forcing displaying multiple preferred phases. Here we analyze the physi
Externí odkaz:
http://arxiv.org/abs/2109.01438
Publikováno v:
Scientific Reports 11, 12834 (2021)
It has long been recognized that emission of radiation from atoms is not an intrinsic property of individual atoms themselves, but it is largely affected by the characteristics of the photonic environment and by the collective interaction among the a
Externí odkaz:
http://arxiv.org/abs/2005.10839
The possibility for detuned spins to display synchronous oscillations in local observables is analyzed in the presence of collective dissipation and incoherent pumping. We show that there exist two distinct mechanisms that can give rise to synchroniz
Externí odkaz:
http://arxiv.org/abs/1912.10984