73 citations · 211 across the 8 of their papers we have counts for
8 papers
Postmodern Fermi Liquids
Umang Mehta
We present, in this dissertation, a pedagogical review of the formalism for Fermi liquids developed in [Delacretaz et al., arXiv:220305004] that exploits an underlying algebro-geom…
Crossing Symmetry in Matter Chern-Simons Theories at finite and
Umang Mehta, Shiraz Minwalla, Chintan Patel +2
We present a conjecture for the crossing symmetry rules for Chern-Simons gauge theories interacting with massive matter in dimensions. Our crossing rules are given in terms o…
Nonlinear Bosonization of Fermi Surfaces: The Method of Coadjoint Orbits
Luca V. Delacretaz, Yi-Hsien Du, Umang Mehta +1
We develop a new method for bosonizing the Fermi surface based on the formalism of the coadjoint orbits. This allows one to parametrize the Fermi surface by a bosonic field that de…
Noncommutative gauge symmetry in the fractional quantum Hall effect
Yi-Hsien Du, Umang Mehta, Dam Thanh Son
We show that a system of particles on the lowest Landau level can be coupled to a probe U(1) gauge field in such a way that the theory is invariant under a noncommut…
Volume-preserving diffeomorphism as nonabelian higher-rank gauge symmetry
Yi-Hsien Du, Umang Mehta, Dung Xuan Nguyen +1
We propose nonabelian higher-rank gauge theories in 2+1D and 3+1D. The gauge group is constructed from the volume-preserving diffeomorphisms of space. We show that the intriguing p…
Large Charge Sector of 3d Parity-Violating CFTs
Gabriel Cuomo, Luca V. Delacretaz, Umang Mehta
Certain CFTs with a global symmetry become superfluids when coupled to a chemical potential. When this happens, a Goldstone effective field theory controls the spectrum and…
Rotons in Anyon Superfluids
Yi-Hsien Du, Umang Mehta, Dam Thanh Son
We consider the problem of calculating the excitation spectrum of a gas of nonrelativistic anyons. When the anyons have statistics close to fermionic and the statistical angle has…
Currents and Radiation from the large Black Hole Membrane
Sayantani Bhattacharyya, Anup Kumar Mandal, Mangesh Mandlik +4
It has recently been demonstrated that black hole dynamics in a large number of dimensions reduces to the dynamics of a codimension one membrane propagating in flat space. In t…