Public Research Seminar by Advanced Materials Thrust, Function Hub, HKUST(GZ) - Entangled Quantum Matter from Unitaries and Measurements
The advent of quantum computing platforms provide new opportunities to harness quantum resource, shape entanglement, and hunt for entangled quantum matter. Beyond unitary gates, the quantum measurement is another fundamental operation underlying quantum mechanics. Counterintuitively, quantum measurement can not only collapse wavefunction and destroy entanglement, but also be leveraged as a new ingredient to organize manybody entanglement. In this talk, I will show a glimpse into the wonderland of rich entangled phases of matter charted out by unitaries and measurements, from a generalized Greenberger-Horne-Zeilinger cat state with multipartite entanglement, to the toric code and fracton with topological order, as well as structured volume-law-entangled Majorana spin liquid.
Guo-Yi Zhu (朱国毅) receives his bachelor degree from South China University of Technology in July 2014, and his PhD degree from Tsinghua University in July 2019. He has been working as a postdoctoral fellow for Max Planck Institute for the Physics of Complex Systems from September 2019 to August 2021, and for the Institute for Theoretical Physics, University of Cologne, from September 2021 until now. His research interests cover broad topics of long-range entangled topological states of matter, strongly correlated electrons, and out-of-equilibrium quantum manybody dynamics. Recently, he has been active at the interface of condensed matter and quantum information processing and computing, focusing on the forefront of studying entangled quantum matter in digital quantum circuits.