Title: An Observable in Classical Pure AdS3 Gravity: the Twist along a Geodesic
Speaker: Jieqiang Wu 吴洁强 (Institute of Theoretical Physics, Chinese Academy of Sciences)
Time: 2:00 pm, Dec 28 (Thursday) 2023
Abstract: In this talk, we consider a little-studied observable in classical pure AdS3 gravity: the twist along a geodesic. The motivation is that the twist only supports on the geodesic and may be a candidate element in the center. We study the properties of the twist and get the following results. First, we get the system's evolution generated by the twist, which exhibits a relative shift along the geodesic. Second, we show that the twist commutes with the length of the same geodesic, which supports the proposal that the twist is a candidate element in the center.
Bio: Jie-qiang Wu got his Ph.D in Peking University in 2017. After getting his Ph.D, Jie-qiang Wu did postdoc in MIT and UCSB. Jie-qiang Wu joined the Institute of Theoretical Physics, Chinese Academy of Sciences in 2022. He is currently an associated professor there. Jie-qiang Wu is interested in quantum gravity and black hole physics. His current research is on the Hamiltonian formalism of gravity.