The quantum Mpemba effect

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• Pasquale Calabrese (SISSA)
• Thursday 27 July 2023, 14:00-15:00
• TCM Seminar Room.

If you have a question about this talk, please contact Bo Peng.

The Mpemba effect is the counterintuitive and controversial phenomenon that hot water cools faster than cold one. Here I will introduce an analogous effect recently proposed and observed in extended quantum systems in which a symmetry is explicitly broken by the initial state, but it is restored by the time evolution. To study this phenomenon we introduce a new quantity, dubbed entanglement asymmetry, which is a measure of symmetry breaking inspired by the theory of entanglement in many-body states.

This talk is part of the Theory of Condensed Matter series.

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