Vadim Oganesyan Magnetic susceptibility of several common topological insulators (Bi2Se3,Sb2Te3, Bi2Te3) is singular at low field, …
Optical Control in High Tc Superconductors
Andrea Cavalleri In this talk, I will discuss some our recent work aimed at controlling the properties of high Tc cuprates with light. We use …
Integer characterization of topological phases at finite temperature using Uhlmann’s parallel transport
Daniel Arovas Berry's geometric phase can be defined for a single Bloch band, or for a group of bands, and allows for integer characterization of …