(2024-05-14) Seminar: Scott Collier -- 3d quantum gravity and Virasoro TQFT


 Scott Collier 博士学术报告

Title: 3d quantum gravity and Virasoro TQFT

Speaker: Scott Collier

Affiliation: Massachusetts Institute of Technology, USA (美国麻省理工学院)

Time: 13:00-14:00, Tuesday, 14th May, 2024 (UTC+8, Beijing Time)

Venue: Zoom Meeting (ID: 385 442 0225; Passcode: yauc)

Inviter: Ryo Suzuki



I will discuss the quantization of one of the simplest theories of gravity, three-dimensional Einstein gravity with negative cosmological constant. In particular I will describe a precise reformulation of AdS_3 quantum gravity in terms of a novel topological quantum field theory based on the quantization of the Teichmuller space of Riemann surfaces that we refer to as Virasoro TQFT. This proposal clarifies the relationship between pure AdS_3 quantum gravity and (two copies of) SL(2,R) Chern-Simons theory, and resolves some well-known issues with this lore. I will argue that moreover this proposal provides a practical framework for the computation of 3d gravity partition functions, and will describe how it elucidates various aspects of the holographic dual.



Dr. Scott Collier is a theoretical physicist with broad interests in non-perturbative aspects of quantum field theory and quantum gravity. After receiving his Ph.D. from Harvard in 2020, he worked as a postdoctoral fellow in Princeton. He is currently a postdoc at Center for Theoretical Physics at MIT.


The seminar will be broadcasted online by Zoom.

Interested people are free to join, without registration in advance.

The Zoom info is


Meeting ID: 385 442 0225

Passcode: yauc