Testing Gravity with Pulsars and Gravitational Waves

发稿时间：2018-10-29浏览次数：252

USTC Astronomy Seminar Series: 2018 Fall

邵立晶助理教授

北京大学

2018/10/30, 4:00pm , the 19th-floor Observatory Hall

Einstein’s general relativity (GR) has passed various tests for more than 100 years with flying colors. However, there remain open questions related to the mysterious gravitational force, both from theory and observation. Thus it is still highly motivated to search for possible deviations from GR. In principle, gravitation can reduce to GR in the weak-field regime, while still manifesting a large deviation in the strong- field regime as, for example, predicted by the nonperturbative calculation in the scalar-tensor theories. Pulsar timing and interferometric gravitational-wave (GW) detectors provide us powerful tools to investigate strong-field gravity with high precision. In this talk, I will review the status of testing strong- field gravity with pulsars and GWs, and the complementarity of the two methods.

邵立晶：Lijing Shao obtained his PhD degree on Theoretical Physics from the School of Physics at Peking University in 2015. Then he worked as a Junior Scientist in the Max Planck Institute for Gravitational Physics (a.k.a. Albert Einstein Institute) in Potsdam Germany, for two years. After that, Lijing worked as a Scientific Staff in the Max Planck Institute for Radio Astronomy in Bonn Germany, for one year. Recently, he joined the Kavli Institute for Astronomy and Astrophysics at Peking University as a Researcher / Assistant Professor. Lijing’s main research interests include tests of gravity theories, pulsars and neutron stars, gravitational waves, and new physics beyond the standard model of particle physics. He is internationally well-known in the field, and he has memberships in large international collaborations including SKA, LISA, eXTP, and EHT et cetera.