From fractional quantum Hall effect to field-theoretic dualities
Seminars
Seminar “Quantum field theory”
Date and Time: Monday, 4 March 2019, at 2:00 PM
Venue: Blokhintsev Conference Hall, Bogoliubov Laboratory of Theoretical Physics
Seminar topic: «From fractional quantum Hall effect to field-theoretic dualities»
Speaker: Dam Thanh Son (University of Chicago)
Abstract:
The fractional quantum Hall fluid is one of the most nontrivial strongly interacting fluids of nature. Many phenomena occurring in this fluid can be explained by postulating a new type of quasiparticle – the composite fermion. I will describe the new “Dirac composite fermion” theory, which has provided a simple solution to some long-standing puzzles and at the same time has stimulated the discovery of a large number of new dualities between quantum field theories in (2+1) dimensions. I will also describe physical consequences of the new theory.