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Quantum Physics
Title: Symmetries & Correlations in Continous Time Crystals
(Submitted on 22 Mar 2024)
Abstract: We demonstrate the inadequacy of mean-field theory by exploring the effects of initial state correlations on the dynamics of continuous time crystals, necessitating higher-order cumulant expansions. We exemplify this using cat states for which the mean field fails to predict a phase transition but the second order cumulant expansion theory captures it. Motivated by the symmetries of the system, we choose a truncation of cumulant theory at the second-order and demonstrate that it is sufficient to accurately capture the dynamical features overlooked by the mean-field.
Submission history
From: Sai Vinjanampathy [view email][v1] Fri, 22 Mar 2024 12:31:08 GMT (197kb,D)
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