Laser Mpemba effect

Abstract

This work explores the emergence of Mpemba-like effects within the quantum theory of lasers. By examining the temporal dynamics of photon number statistics in a single-mode laser above threshold, we reveal the curious and counterintuitive possibility that a laser system, starting with photon statistics far from equilibrium, may reach its stationary nearly-Poissonian distribution faster than a system initially closer to equilibrium. Drawing parallels to both classical and quantum Mpemba effects, we suggest that this behavior results from the unique relaxation dynamics of photon states, which is described by a non-integrable birth-death process. Our findings offer new insights into the foundational aspects of quantum laser light and contribute to the expanding body of research on non-equilibrium phenomena in quantum systems.

5 pages, 3 figures, highlighted as an Editor's Pick

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Cited by in corpus (5)

• Mpemba effect and super-accelerated thermalization in the damped quantum harmonic oscillator
• Quantum Mpemba effect from initial system-reservoir entanglement
• Quantum Mpemba effect in parity-time symmetric systems
• Quantum Pontus-Mpemba Effect Enabled by the Liouvillian Skin Effect
• Quasinormal Mode Spectroscopy via Horizon-Brightened Quantum Optics