29 Nov 2023
Seminars and colloquia
Time
Venue
Simpkins Lee
Speaker(s)
Prof. Pasquale Calabrese, SISSA
Seminar series
CMT Forum
Knowledge of physics?
Yes, knowledge of physics required
For more information contact
Abhi Prakash, abhishodh.prakash@physics.ox.ac.uk
The quantum Mpemba effect
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.