PIRSA:20110001

Mixed-state entanglement as a diagnostic for quasiparticles and finite-T topological order

Grover, T. (2020). Mixed-state entanglement as a diagnostic for quasiparticles and finite-T topological order. Perimeter Institute. https://pirsa.org/20110001

Grover, Tarun. Mixed-state entanglement as a diagnostic for quasiparticles and finite-T topological order. Perimeter Institute, Nov. 09, 2020, https://pirsa.org/20110001 

          @misc{ pirsa_PIRSA:20110001,
            doi = {10.48660/20110001},
            url = {https://pirsa.org/20110001},
            author = {Grover, Tarun},
            keywords = {Condensed Matter},
            language = {en},
            title = {Mixed-state entanglement as a diagnostic for quasiparticles and finite-T topological order},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {nov},
            note = {PIRSA:20110001 see, \url{https://pirsa.org}}
          }

Tarun Grover

University of California, San Diego

Talk number
PIRSA:20110001
Talk Type
Subject
Abstract

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 (ii) Detecting presence/absence of quasiparticles. Time permitting, I will also discuss a relation between mixed-state entanglement and information obtained from projective measurements, and its application to characterizing multi-component systems, such as quantum disentangled liquids and Kondo lattice systems.