Wednesday weekly meeting

Wednesday 8 Jul 2020, 11:00 → 12:00 Asia/Tehran

Seyed Mohsen Etesami (IPM)

General weekly meeting of the school of particles and accelerators Meeting room link: https://www.skyroom.online/ch/ipm-particles/school-of-particles-and-accelerators-weekly-meeting

1 Time Evolution of Entanglement entropy for Thermofield Double States

We review the time evolution of the entanglement entropy of the thermofield double (TFD) states for scalar quantum field theory on a circle‎. ‎It is observed that the entanglement entropy growth linearly in early times and saturates after a time of the order of the length of subregion‎, ‎similar to the time evolution of the entanglement entropy in non-equilibrium quantum systems following quench‎. The ‎zero ‎mode‎ effect has also been shown to manifest itself as logarithmic growth‎‎‎, ‎which is derived analytically for a subsystem consisting of a single degrees of freedom on each side of the TFD at the massless limit‎.

Speaker: Mostafa Ghasemi (IPM)