Emergent Gauge Fields and Topology in Quantum Matter
Zoom Meeting ID: 939 0317 8346, Password: 326163
For decades, condensed matter systems have been studied within the framework of classical order parameters - i.e. the Landau-Wilson paradigm. This has been recently extended with the rather complete understanding of topological states of noninteracting electrons. In this talk I will focus instead on new physics that arises from the interplay of topology and strong interactions. A unifying theme will be the emergence of gauge fields rather than the classical order parameters of Landau theory. I will illustrate these general themes with two recent works. The first proposes a route to realizing a long sought after phase - the Z2 quantum spin liquid - in a synthetic platform, an array of highly excited (Rydberg) atoms . A potential application to the engineering of naturally fault tolerant quantum bits will also be described. The second example describes a topological route to strong coupling superconductivity , which was inspired by recent experimental observations in magic angle bilayer graphene and related devices.
 arXiv:2011.12310. Prediction of Toric Code Topological Order from Rydberg Blockade.
Authors: R. Verresen, M. Lukin and A. Vishwanath.
arXiv:2004.00638. Charged Skyrmions and Topological Origin of Superconductivity in Magic Angle Graphene.
תאריך עדכון אחרון : 05/12/2022