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arXiv · 2511.16996

Canonical Quantum Mpemba Effect in a Dissipative Qubit

Xingli Li·Yan Li·Yangqian Yan
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Abstract

The Mpemba effect, where a hotter system cools faster than a colder one under otherwise identical conditions, has been extensively studied in classical systems. In this work, we present the quantum analogue of the Mpemba effect using a dissipative qubit, which is referred to as the canonical quantum Mpemba effect. We demonstrate that, under the identical conditions, the relaxation dynamics of a qubit initialized in a thermal state with a higher temperature can be exponentially faster than those of a colder thermal state. Strikingly, this acceleration is determined solely by the initial temperature of the system, independent of other parameters. The relaxation is confirmed to be a genuine cooling process via the effective steady state temperature, mirroring its classical counterpart. Last, we propose a practical classical quantum hybrid algorithmic quantum circuit to realize this effect using superconducting qubits experimentally.

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Xingli Li, Yan Li, Yangqian Yan. 2025-11-21. Canonical Quantum Mpemba Effect in a Dissipative Qubit. https://arxiv.org/abs/2511.16996

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