Gravity from Averaging CFTs
01.10.2020 15:30 – 16:30
I will explore the idea that certain theories of gravity in Anti-de
Sitter space are dual to an average over an ensemble of quantum
theories, rather than to a specific quantum theory. I will describe
an average over Narain’s family of two-dimensional conformal field
theories which describe free bosons on a torus, and compute the
partition function using the Siegel-Weil formula. The result takes
the form of a sum over geometries as one would expect in a theory of
gravity. But the gravitational theory looks more like a Chern-Simons
theory than like Einstein gravity.
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https://unige.zoom.us/j/94317657018?pwd=NDBYVEh6aE13TXhkQXhDZWVUemFtZz09
Meeting ID: 943 1765 7018
Passcode: 900354
Lieu
Bâtiment: Ecole de Physique
Zoom meeting
Organisé par
Département de physique théoriqueIntervenant-e-s
Alex Maloney, McGill Universityentrée libre
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