Hamilton Colloquium Series, Shinsei Ryu, University of Chicago, "Topology, Entanglement, and Time-Reversal Symmetry in Quantum Many-Body Physics"

Thu, Mar 14, 2019, 4:00 pm

Time-reversal symmetry is one of fundamental symmetries that can present in many quantum mechanical systems. It plays an important role in many-body quantum systems, as demonstrated, for example, in the physics of topological insulators. In this talk, I will discuss topology and quantum entanglement protected and detected by time-reversal symmetry. Of particular importance for us is the so-called *partial transpose* -- a quantum information theoretical operation closely related to time-reversal. I will discuss how it can be used to detect topological properties of many-body ground state of topological insulators and superconductors without relying on single particle band structures, and, also, how it can be used to quantify quantum entanglement of mixed quantum states. 

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Recording of Professor Ryu's Talk: http://www.kaltura.com/tiny/r2rs1

 

Location: 
Jadwin A10
Sponsor(s): 
Department of Physics
Audience: 
A free lecture open to the public.
Speaker(s):