Chaos to Synchronization and Dissipative Quantum Scarring in Open Coupled top-Dicke model in a Lossy Cavity

• URL: http://arxiv.org/abs/2605.22953v1
• Date: Thu, 21 May 2026 18:32:19 GMT
• Title: Chaos to Synchronization and Dissipative Quantum Scarring in Open Coupled top-Dicke model in a Lossy Cavity
• Abstract summary: We present a variant of the Dicke model, which enables the exploration of rich non-equilibrium phenomena.<n>This model can effectively be realized by coupling a two-species Bose-Josephson junction to a lossy cavity.<n>We identify two distinct scarring phenomena in the presence of dissipation.
• Score: 0.3823356975862005
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present a variant of the Dicke model, termed as the open coupled-top Dicke model, which enables the exploration of rich non-equilibrium phenomena, particularly the fate of quantum scars in an open environment. This model can effectively be realized by coupling a two-species Bose-Josephson junction to a lossy cavity. Photon loss induces spontaneous synchronization via projection onto a dissipation-free subspace, along with transient chaos followed by restoration of synchronization and coherence. We identify two distinct scarring phenomena in the presence of dissipation. One remains protected, exhibiting persistent revivals, while the scar associated with the superradiant phase displays a dissipation-induced slow decay of the survival probability. Remarkably, for sufficiently small spin magnitude, the chaos-assisted macroscopic quantum tunneling is linked to the latter type of scarring. The results can be readily tested in ongoing cavity QED experiments and have broader applicability in other platforms.

Related papers

• Controlling many-body quantum chaos in a dissipative optical cavity [0.0]
  We study the driven-dissipative dynamics of a typical cavity QED setting including controllable disorder and long-range interactions.<n>We find that the two dissipation sources have qualitatively different structures.
  arXiv  Detail & Related papers  (2026-07-05T18:40:50Z)
• Evidence for a two-dimensional quantum glass state at high temperatures [108.88989889650607]
  Disorder in quantum many-body systems can drive transitions between ergodic and non-ergodic phases.<n>We study an interacting spin model at finite temperature in a disordered landscape.<n>Our results show that there is a transition out of the ergodic phase in two-dimensional systems.
  arXiv  Detail & Related papers  (2026-01-04T00:09:50Z)
• Emergent spin order and steady-state superradiance in one-dimensional baths [0.0]
  Spontaneous collective decay in driven atomic ensembles can generate coherence far from equilibrium.<n>We analyze atoms coupled to one-dimensional electromagnetic baths through two models.
  arXiv  Detail & Related papers  (2025-11-13T18:56:46Z)
• Liouvillian Spectral Transition in Noisy Quantum Many-Body Scars [10.35863517836022]
  We show that scarred eigenmodes of the Liouvillean exhibit a transition reminiscent of spontaneous $mathbbPT$-symmetry breaking as the dephasing strength increases.<n>Remarkably, in platforms such as the XY spin ladder and PXP model of Rydberg atom arrays, the critical dephasing rate shows only weak dependence on the system size.
  arXiv  Detail & Related papers  (2025-04-16T17:55:02Z)
• Enhancing Revivals Via Projective Measurements in a Quantum Scarred System [51.3422222472898]
  Quantum many-body scarred systems exhibit atypical dynamical behavior, evading thermalization and featuring periodic state revivals.<n>We investigate the impact of projective measurements on the dynamics in the scar subspace for the paradigmatic PXP model.<n>We identify a measurement-induced phase resynchronization, countering the natural dephasing of quantum scars, as the key mechanism underlying this phenomenon.
  arXiv  Detail & Related papers  (2025-03-28T17:03:14Z)
• Stability and decay of subradiant patterns in a quantum gas with photon-mediated interactions [34.82692226532414]
  We observe excited self-ordered subradiant patterns in a quantum gas and report lifetimes far beyond the system's typical timescales.<n>Our work sheds light on the microscopic mechanisms stabilizing quantum states of matter and highlights the potential of photon-mediated forces for engineering correlations in many-body quantum systems.
  arXiv  Detail & Related papers  (2024-07-12T12:47:07Z)
• Steady-state edge burst: From free-particle systems to interaction-induced phenomena [2.49649604985112]
  We find that the interplay between the non-Hermitian skin effect and the imaginary gap of lossy lattices results in the edge burst. We introduce a many-body open-system model in which the two-body loss generates an interaction-induced non-Hermitian skin effect. Our predictions are testable in state-of-the-art experimental platforms.
  arXiv  Detail & Related papers  (2023-06-14T18:00:03Z)
• Dissipative stabilization of maximal entanglement between non-identical emitters via two-photon excitation [49.1574468325115]
  Two non-identical quantum emitters, when placed within a cavity and coherently excited at the two-photon resonance, can reach stationary states of nearly maximal entanglement. We show that this mechanism is merely one among a complex family of phenomena that can generate both stationary and metastable entanglement when driving the emitters at the two-photon resonance.
  arXiv  Detail & Related papers  (2023-06-09T16:49:55Z)
• Quantum chaos and thermalization in the two-mode Dicke model [77.34726150561087]
  We discuss the onset of quantum chaos and thermalization in the two-mode Dicke model. The two-mode Dicke model exhibits normal to superradiant quantum phase transition. We show that the temporal fluctuations of the expectation value of the collective spin observable around its average are small and decrease with the effective system size.
  arXiv  Detail & Related papers  (2022-07-08T11:16:29Z)
• Out-of-time-order correlator in the quantum Rabi model [62.997667081978825]
  We show that out-of-time-order correlator derived from the Loschmidt echo signal quickly saturates in the normal phase. We show that the effective time-averaged dimension of the quantum Rabi system can be large compared to the spin system size.
  arXiv  Detail & Related papers  (2022-01-17T10:56:57Z)
• Atomic self-organization emerging from tunable quadrature coupling [5.624813092014403]
  We propose a novel scheme to couple two density-wave degrees of freedom of a BEC to two quadratures of the cavity field. We unravel a dynamically unstable state induced by the cavity dissipation. Our work enriches the quantum simulation toolbox in the cavity-quantum-electrodynamics system.
  arXiv  Detail & Related papers  (2020-04-07T13:25:44Z)
• Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
  We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit. We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront. The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
  arXiv  Detail & Related papers  (2020-03-09T21:27:02Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.