Quasiparticles are collective modes in many-body systems that can mimic semiclassical particles under some circumstances. I will talk about the emergence of semiclassical features in quasiparticle states of quantum spin chains using two quantum information quantities, entanglement entropy and subsystem distance. I will also demonstrate how the semiclassical description fails for a different measure, Shannon entropy.
Bibliography: Jiaju Zhang is an associate professor at Tianjin University. He received his D.Sc. degree from Peking University in 2014 and then worked as a postdoctoral researcher at Institute of High Energy Physics Chinese Academy of Sciences, University of Milano-Bicocca, and International School for Advanced Studies (SISSA).
Tecent Meeting: 309-674-135
Prof. Bin Chen