More strongly entangled two-qubit states can reach separability faster than weakly entangled ones under local amplitude damping, forming an ESD Mpemba effect with an exact analytical derivation of crossover time.
Experimental Observation of Environment-induced Sudden Death of Entanglement
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abstract
We demonstrate the difference between local, single-particle dynamics and global dynamics of entangled quantum systems coupled to independent environments. Using an all-optical experimental setup, we show that, while the environment-induced decay of each system is asymptotic, quantum entanglement may suddenly disappear. This "sudden death" constitutes yet another distinct and counter-intuitive trait of entanglement.
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quant-ph 1years
2026 1verdicts
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Anomalous Decay of Quantum Resources: The Entanglement Sudden Death Mpemba Effect
More strongly entangled two-qubit states can reach separability faster than weakly entangled ones under local amplitude damping, forming an ESD Mpemba effect with an exact analytical derivation of crossover time.