Joint cosmology seminar at MIT:

Tuesday, May 7, 2013, 2:30 pm
Cosman Seminar Room
Center for Theoretical Physics
Building 6C, Room 6C-442
Massachusetts Institute of Technology
Refreshments at 2:00 in the same room

Unimodular Quantum Gravity

Ben Shlaer
Tufts

Abstract:

Unimodular gravity is classically indistinguishable from standard general relativity. Even at the quantum level, it differs only by the addition of a single, position-independent operator. Despite this almost trivial modification, unimodular gravity has profound implications for canonical quantum gravity and even string theory.