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Abstract：
Thermalization of the quark gluon plasma (QGP) created in relativistic heavy-ion collisions is a crucial theoretical question in understanding the onset of hydrodynamics, and in a broad sense, a key step to the exploration of thermalization in quantum many body systems. Addressing this problem theoretically, in a first principle manner, requires a real-time, non-perturbative method. To this end, we carry out a fully quantum simulation on a classical hardware, of a massive Schwinger model, which well mimics QCD as it shares the important properties such as confinement and chiral symmetry breaking.
In this talk, I will focus on the time evolution of condensate and entanglement which reveals the process of hadron production.
We then move on to compute the time evolution of Wigner function (quantum version of phase space distribution function) and stress tensor, and observe the onset of thermal equilibrium and hydrodynamics modes. We also study the connection of the Wigner function thermalization to the Eigenstate Thermalization (ETH). The ETH is a well-known postulation that explains the thermalization of observables in isolated quantum many-body systems without processing quantum ergodicity. Implications to relativistic heavy ion collisions will also be discussed.
Biography:
Shuzhe Shi is currently an Assistant Professor at the Department of Physics, Tsinghua University. He obtained his bachelor's (2012) and master's (2015) degrees from Tsinghua under the supervision of Prof. Pengfei Zhuang. Then he received the Ph.D.(2018) from Indiana Univ., Bloomington, supervised by Prof. Jinfeng Liao. After that, he became PostDoc researchers at McGill Univ.(2018) and Stony Brook Univ.(2021). His research focuses on novel transport phenomena in heavy ion collisions, as well as applying machine learning and quantum computation methods in nuclear physics.
Host: Prof. Yifeng Sun
Alternative online link: https://meeting.tencent.com/dm/j6y2Z00c8DLX (id: 289252622 passcode: 123456）