Description

2014/11/18, Prof. Dr. Norbert Schuch  (RWTH Aachen, Germany)

Place: Seminar Room of Theoretical Physics Department
Time: 11h45
Title:  Bulk-boundary correspondence with Projected Entangled Pair States
 
 
Abstract
The boundary plays an important role in understanding low-energy states of strongly correlated many-body systems: many bulk properties  are reflected at the boundary, and the boundary carries the entanglement of any region with the outside. Based on this entanglement structure, Projected Entangled Pair States (PEPS) provide a local entanglement-based description of general strongly correlated systems. In my talk,  I will start by giving an introduction to PEPS, and then discuss how they provide us with an improved understanding of bulk-boundary relations in strongly correlated matter.  In particular, I will show how PEPS allow to derive entanglement spectra and the edge dynamics of quantum lattice systems, and how topological quantum order in the bulk is reflected in protected physics at the edge.