Relaxation shortcuts through boundary coupling

Abstract

When a hot system cools down faster than an equivalent cold one, it exhibits the Mpemba Effect. This counterintuitive phenomenon was observed in several systems including water, magnetic alloys and polymers. In most experiments the system is coupled to the bath through its boundaries, but all theories so far assumed bulk coupling. Here we build a general framework for boundary coupling relaxation and show that the Mpemba effect persists in these cases. Surprisingly, it can survive even an arbitrarily weak couplings. An example is given in the Ising antiferromagnetic chain.

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Cited by in corpus (32)

• Microscopic origin of the quantum Mpemba effect in integrable systems
• Symmetry restoration and quantum Mpemba effect in symmetric random circuits
• Entanglement asymmetry and quantum Mpemba effect in the XY spin chain
• Entanglement asymmetry and quantum Mpemba effect in two-dimensional free-fermion systems
• The quantum Mpemba effects
• Multiple crossing during dynamical symmetry restoration and implications for the quantum Mpemba effect
• The quantum Mpemba effect in free-fermionic mixed states
• Thermomajorization Mpemba Effect
• Speedups in nonequilibrium thermal relaxation: Mpemba and related effects
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• Quantum Mpemba Effects from Symmetry Perspectives
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• Mpemba effect and super-accelerated thermalization in the damped quantum harmonic oscillator
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• Tuning the Quantum Mpemba Effect in Isolated System by Initial State Engineering
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• Relaxation Control of Open Quantum Systems
• Dynamical Phase Transitions in Open Quantum Walks
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