Quantum spin liquids (QSL) are phases that show strongly interacting spins often observed in frustrated magnets. QSLs carry interesting properties like long-ranged entanglement and fractional statistics. Furthermore, it is known that even at low (or zero) temperatures, QSL does not have classical Landau order parameters to characterize the phase. However, recent development in topological entanglement entropy allows us to detect such topological orders in QSLs, and one can even extract fractional braiding statistics from anyonic quasiparticles. I will start by introducing what is (topological) entanglement entropy. Then I will discuss how one can diagnose QSLs and extract braiding statistics using such tool with examples.
The Zoom link will be sent to the Graduate Student and PDRA mailing lists. If you are not on one of those lists and are interested in attending, please email Mark Hirsbrunner at hrsbrnn2@illinois.edu for the link.
