报告题目：Compact Star of Holographic Nuclear Matter and GW170817

报 告 人：张 弘（National Taiwan Normal University）

邀 请 人：邓 建

报告时间：11月26日(周二) ，14:00

报告地点：青岛校区第周苑E -122

报告摘要：

We use a holographic model of quantum chromodynamics to extract the equation of state (EoS) for the cold nuclear matter of moderate baryon density.  This model is based on the Sakai-Sugimoto model in the deconfined Witten's geometry with the additional point-like D4-brane instanton configuration as the holographic baryons. Our EoS takes a doubly-polytropic form. The sound speed satisfies the causality constraint and breaks the sound barrier.  We solve the Tolman-Oppenheimer-Volkoff equations for the compact stars. We reach the reasonable compactness for the proper tunable parameter. Based on these configurations we further calculate the tidal deformability of the single and binary stars. We find our results agree with the inferred values of LIGO/Virgo data analysis for GW170817.  

报告人简介：

张 弘：

2004—2008: Bachelor of Engineering in Engineering Physics, Tsinghua University, Beijing China

2008—2013: Doctor of Science in Physics, The University of Tokyo, Tokyo Japan

2013—2014: Collaborative Researcher, CHUO University, Tokyo Japan

2014—2016: Research Associate, Center for Quantum Spacetime, Sogang University, Seoul Korea

2016—2018: Postdoc, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing China

2018—present: Postdoc, National Taiwan Normal University, Taipei Taiwan (China)