Title: Gravitational Wave in Non-Perturbative Theory

Speaker: Professor Hongsheng Zhang (University of Jinan)

Time: 10:00am, Apr. 23, 2021

Location: 3-402, PMO Xianlin Campus

Abstract: Gravitational theory is essentially a nonlinear theory. The idea of linear gravitational wave may ignore some essential features of gravity theory. The speaker will introduce the non-perturbative theory of gravitational waves, then derive the topological spherically symmetric gravitational waves of F (R) theory, and give their longitudinal degrees of freedom.