Einstein’s general relativity (GR) has passed various tests for more ?than a century 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 of ?gravity. 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.

BIO
Dr. Lijing Shao obtained his PhD degree on Theoretical ?Physics from Peking University in 2015. Then he worked as a Junior ?Scientist in the 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.

Host: Prof. Xuening Bai