»ã±¨±êÌâ (Title)£ºAn Observable in Classical Pure AdS3 Gravity: the Twist along a Geodesic£¨Ò»¸öÔÚ¾­µäAdS3´¿ÒýÁ¦ÖеĹÛÕÉÁ¿£º¼´ÑزâµØÏßµÄÐýת£©

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»ã±¨¹¦·ò (Time)£º2024Äê1ÔÂ9ÈÕ(Öܶþ) 15:00-17:00

»ã±¨µØÖ· (Place)£ºÐ£±¾²¿ G313

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ÌáÒª (Abstract)£º

In this work, 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.