Starts 22 Jun 2021 17:00
Ends 22 Jun 2021 18:00
Central European Time
Quantum entanglement of pure states has led to new insights into a wide variety of topics. Entanglement of mixed states is however less well understood. In this talk I will focus on a few themes where mixed-state entanglement leads to new insights that are difficult to obtain otherwise. I will mainly focus on two topics: (i) Characterizing finite-temperature topological order [1] and classicality/quantum-ness of phase transitions [2] (ii) Detecting presence of quasiparticles and quantum chaos [3]. Work done in collaboration with Tsung-Cheng Lu, Tim Hsieh, Kai-Hsin Wu, Chia-Min Chung and Ying-Jer Kao. [1] Phys. Rev. Lett. 125, 116801 (2020). [2] Phys. Rev. Research 2, 043345 (2020), Phys. Rev. Lett. 125, 140603 (2020), Phys. Rev. B 99, 075157 (2019). [3] Phys. Rev. B 102, 235110 (2020).