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arXiv · 2505.02040

Tuning the Quantum Mpemba Effect in Isolated System by Initial State Engineering

Yihan Yu·Tianren Jin·Lv Zhang·Kai Xu·Heng Fan
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Abstract

We investigate the quantum Mpemba effect (QME) in isolated, non-integrable quantum systems, where relaxation dynamics depend on structure of the initial states. By analyzing the distribution of initial states across symmetrical subspaces, we identify a tunable mechanism that influences the emergence of QME, showing faster relaxation from certain out-of-equilibrium states. Additionally, we propose an experimentally realizable quantum circuit, which requires no complex controls on quantum simulator platforms and serves to verify our theoretical predictions. These results establish symmetry-resolved state engineering as a practical tool for manipulating non-equilibrium quantum dynamics.

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Yihan Yu, Tianren Jin, Lv Zhang, Kai Xu, Heng Fan. 2025-05-04. Tuning the Quantum Mpemba Effect in Isolated System by Initial State Engineering. https://doi.org/10.1103/yzjd-pk8h

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