Editor: 周婷 Time: 2018-12-24 Number of visits: 92
Title: Dynamics of entanglement in random unitary circuit
Speaker: Tian-ci Zhou （周天赐）
Kavli Institute for Theoretical Physics
University of California at Santa Barbara
Place：Room 201, Building 12, Yuquan Campus
Time：Dec. 26th, Wednesday, 15:00-16:00
Abstract
We systematically study the dynamics of quantum entanglement in a random unitary circuit, which is a minimal model of chaotic systems with local interactions. The problem maps to the statistical mechanics of interacting domain walls, where entanglement is the free energy. We find that the linear growth of R\'enyi entropies in a global quench is determined by the line tension of the domain wall, and their fluctuation obeys the universal Kadar-Parisi-Zhang scaling due the replica interaction. This picture allows us to understand the behaviors of entanglement in systems at the strongly chaotic limit.
About the Speaker
Dr. Zhou graduated in Department of Physics, Zhejiang University in June, 2012, and received his Ph D from University of Illinois at Urbana-Champaign in Aug.,2018. Dr. Zhou is currently a postdoctoral researcher at KITP working on non-equilibrium dynamics, including quantum quench, entanglement, and recently quantum chaos, etc.
Add: No. 8 Hainayuan Building, Zijingang Campus, Zhejiang University, 866 Yuhangtang Rd, Hangzhou, 310027, P.R. China
Tel: +86-571-87953325
Fax: +86-571-87951895
Email: yongyi@zju.edu.cn
