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Open Quantum Systems Decoherence

Experimental observation and application of the genuine Quantum Mpemba Effect

arXiv
Authors: Bruno P. Schnepper, Jefferson L. D. de Oliveira, Carlos H. S. Vieira, Krissia Zawadzki, Roberto M. Serra

Year

2025

Paper ID

16976

Status

Preprint

Abstract Read

~2 min

Abstract Words

97

Citations

N/A

Abstract

Coherence is an inherently quantum property that deeply affects microscopic processes, including thermalization phenomena. A striking example is the quantum Mpemba effect (QME), in which a system can exhibit anomalous relaxation, thermalizing faster from a state initially farther from equilibrium than from one closer. Here, we experimentally investigate the genuine QME and observe how the dynamics of a spin-1/2 system interacting with a heat sink can be sped-up to equilibrium. Furthermore, we apply the QME in a quantum Otto refrigerator, thereby increasing its cooling power. This proof-of-concept experiment unveils new practical paths for improving quantum thermal tasks.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2025 reference point for readers tracking recent quantum research.
  • Coherence is an inherently quantum property that deeply affects microscopic processes, including thermalization phenomena.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2511.14552 [2] arXiv https://arxiv.org/abs/2511.14552 [3] Publisher https://arxiv.org/abs/2511.14552

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