ICMT Seminar: "Bimetric theory of fractional quantum Hall states"

Speaker Andrey Gromov, University of Chicago
Date: 9/25/2017
Time: 12 p.m.

190 ESB


Institute for Condensed Matter Physics

Event Type: Seminar/Symposium

I will describe the recently developed bimetric theory of fractional quantum Hall states. This effective theory includes the Chern-Simons theory that describes the topological properties of the fractional quantum Hall states and an action a la bimetric gravity that describes the massive Girvin-MacDonald-Platzman mode. The theory reproduces the universal features of chiral lowest Landau level (LLL) FQH states which lie beyond the TQFT data, such as the projected static structure factor and the GMP algebra. The LLL projection and particle-hole "symmetry'' are particularly transparent. Familiar quantum Hall observables acquire a curious geometric interpretation in the bimetric language.

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