Canonical Quantum Mpemba Effect in a Dissipative Qubit

• URL: http://arxiv.org/abs/2511.16996v1
• Date: Fri, 21 Nov 2025 07:04:59 GMT
• Title: Canonical Quantum Mpemba Effect in a Dissipative Qubit
• Authors: Xingli Li, Yan Li, Yangqian Yan,
• Abstract summary: Mpemba effect is where a hotter system cools faster than a colder one under otherwise identical conditions.<n>We present the quantum analogue of the Mpemba effect using a dissipative qubit.<n>We propose a practical classical quantum hybrid algorithmic quantum circuit to realize this effect.
• Score: 1.8833495924915031
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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