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

• URL: http://arxiv.org/abs/2505.02040v2
• Date: Tue, 13 May 2025 09:24:44 GMT
• Title: Tuning the Quantum Mpemba Effect in Isolated System by Initial State Engineering
• Authors: Yihan Yu, Tianren Jin, Lv Zhang, Kai Xu, Heng Fan,
• Abstract summary: We investigate the quantum Mpemba effect (QME) in isolated, non-integrable quantum systems.<n>We identify a tunable mechanism that influences the emergence of QME, showing faster relaxation from certain out-of-equilibrium states.<n>We propose an experimentally realizable quantum circuit, which requires no complex controls on quantum simulator platforms.
• Score: 11.207785341796862
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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