报告题目：Observation of universal dissipative dynamics in strongly correlated quantum gas

报告人：陈文兰教授    清华大学

报告时间：2024年01月16日（周二）9:00

报告地点：理六栋302会议室         邀请人：颜辉

报告内容：

Dissipation is unavoidable in quantum systems. It usually induces decoherences and changes quantum correlations. To access the information of strongly correlated quantum matters, one has to overcome or suppress dissipation to extract out the underlying quantum phenomena. However, here we find an opposite effect that dissipation can be utilized as a powerful tool to probe the intrinsic correlations of quantum many-body systems. Applying highly- controllable dissipation in ultracold atomic systems, we observe a universal dissipative dynamics in strongly correlated one-dimensional quantum gases. The total particle number of this system follows a universal stretched-exponential decay, and the stretched exponent measures the anomalous dimension of the spectral function, a critical parameter characterizing strong quantum fluctu- ations of this system. This method could have broad applications in detecting strongly correlated features, including spin-charge separations and Fermi arcs in quantum materials.

专家简介：

Prof. Wenlan Chen is from Department of Physics, Tsinghua University. Her research is focused on experimental exploration of quantum simulations and quantum computations on the coldatom platforms.