About QUINST

Quantum mechanics is at the heart of our technology and economy - the laser and the transistor are quantum devices - but its full potential is far from being realized. Recent technological advances in optics, nanoscience and engineering allow experimentalists to create artificial structures or put microscopic and mesoscopic systems under new manipulable conditions in which quantum phenomena play a fundamental role.

Quantum technologies exploit these effects with practical purposes. The objective of Quantum Science is to discover, study, and control quantum efects at a fundamental level. These are two sides of a virtuous circle: new technologies lead to the discovery and study of new phenomena that will lead to new technologies.

Our group's aim is  to control and understand quantum phenomena in a multidisciplinary intersection of  Quantum Information, Quantum optics and cold atoms, Quantum Control, Spintronics, Quantum metrology, Atom interferometry, Superconducting qubits and Circuit QED and Foundations of Quantum Mechanics.

 

 

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Prof. Dr. Norbert Schuch  (RWTH Aachen, Germany) (Seminar)

When end where

12/2015

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.