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High Energy Theory Seminar

Wednesday, February 7, 2024
10:45am to 11:45am
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Online and In-Person Event
The action of geometric entropy in topologically massive gravity
Molly Kaplan, UC Santa Barbara,

Due to the presence of a gravitational anomaly in topologically massive gravity (TMG), the geometric entropy is no longer simply the Hubeny-Rangamani-Takayanagi (HRT) area; instead, it is given by the HRT area plus an anomalous contribution. In this talk, we will discuss the action of this geometric entropy on the covariant phase space of classical solutions for TMG. The result agrees precisely with the action of HRT area operators in Einstein-Hilbert gravity given in arXiv:2203.04270, i.e., it is a boundary-condition-preserving kink transformation. Furthermore, we will show how this result is consistent with direct computations of semiclassical commutators of geometric entropies in pure TMG spacetimes asymptotic to planar AdS, as computed in arXiv:2206.00027.

The talk is in 469 Lauritsen.

Contact [email protected] for Zoom information.