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Measurement-Induced Symmetry Restoration and Quantum Mpemba Effect.

Giuseppe Di Giulio1, Xhek Turkeshi2, Sara Murciano3

  • 1Oscar Klein Centre and Department of Physics, Stockholm University, AlbaNova, 106 91 Stockholm, Sweden.

Entropy (Basel, Switzerland)
|April 26, 2025
PubMed
Summary

Dynamical measurements in quantum systems induce a quantum Mpemba effect, causing asymmetric states to reach symmetry faster. This measurement-induced phenomenon also reveals a novel symmetry restoration mechanism in monitored many-body systems.

Keywords:
Mpemba effectmany-body quantum dynamicsmonitored phases

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