报告题目（Title）：时间晶体和量子同步 （Time crystals and quantum synchronisation）
报 告 人（Speaker）：Rosario Fazio 教授 (The Abdus Salam International Centre for Theoretical Physics - Trieste (Italy))
报告时间（Time）： 2019年10月14日 （周一）9:50
报告地点（Place）：校本部G309
邀请人（inviter）：姜颖
摘要（Abstract）：
Landau's idea of classifying phases of matter in terms of symmetry breaking is a cornerstone of modern physics. In his pioneering work Wilczek argued that an autonomous system can break time translation symmetry, thus realising what he named as time crystals. Their existence has been confirmed very recently in a number of experiments. I will review the field focusing in particular on the so called Floquet time-crystals arising in many-body systems that are periodically driven.
I will also introduce boundary time-crystals where continuous time-translation symmetry breaking occurs at the boundary (or generically in a macroscopic portion) of a many-body quantum system. The existence of the boundary time crystals is intimately connected to the emergence of time-periodic steady state in the thermodynamic limit of a many-body open quantum system. Connection to quantum synchronisation will be also discussed.
