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Seminar
Speaker
Rohan Poojary (Chennai Mathematical Institute)
Date & Time
Thu, 19 September 2019, 16:00 to 17:30
Venue
Emmy Noether Seminar Room, ICTS Campus, Bangalore
Resources
Abstract

We find an effective action for gravitational interactions with scalars in AdS3 to first order in GN at the conformal boundary. This action can be understood as an action for the Brown-Henneaux modes and is given by the square-root product of right and left moving Schwarzian derivatives for conformal transformations of the boundary. We thus reproduce the result λL=2πβ for OTOC computed first in arXiv:1412.6087 for a Schwarzchild black hole in AdS3. Applying the same procedure to rotating BTZ we find the Lyapunov index to be λL=2πβ+>2πβ where β+=β(1−μL), with μL=r−r+ being the chemical potential for angular momentum. We thus comment on a possible modification to a part of the proof given in arXiv:1503.01409 to accommodate this result.