タイトル Entanglement Entropy after Multiple excitations in Rational CFTs
講師： 沼澤 宙朗（大阪大学）
概要：In this talk I will explain the evolution of entanglement entropy after multiple excitations in Rational CFTs.
First, I review the case of single local operator excitation and its effect on entanglement entropy and show that the so called quantum dimension appears.
Then, I generalize them to the multiple excitations case.
The results show that because of the finiteness of quantum dimension, entanglement is not changed after the scattering in RCFTs. In this mean, entanglement is conserved after the scattering event in RCFTs, which reflects the integrability of the system. These results are also consistent with the free quasiparticle picture after the global quenches.