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Updated: May 8, 2025

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Published on: March 30, 2017
Controlling the Dynamics of Atomic Correlations via the Coupling to a Dissipative Cavity
Catalin-Mihai Halati1, Ameneh Sheikhan2, Giovanna Morigi3
1University of Geneva, Department of Quantum Matter Physics, Quai Ernest-Ansermet 24, 1211 Geneva, Switzerland.
Abstract:
We analyze the relaxation dynamics in an open system, composed by a quantum gas of bosons in a lattice interacting via both contact and global interactions. We report the onset of periodic oscillations of the atomic coherences exhibiting hallmarks of synchronization after a quantum quench. The dynamical behavior exhibits the many-body collapse and revival of atomic coherences and emerges from the interplay of the quantum dissipative nature of the cavity field and the presence of a (approximate) strong symmetry in the dissipative system. We further show that the approximate symmetry can dynamically self-organize. We argue that the approximate symmetry can be tailored to obtain long-lived coherences. These insights provide a general recipe to engineer the dynamics of globally interacting systems.
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