Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Mehta, Umang"'
Publikováno v:
Phys. Rev. B 110, 035102 (2024)
We apply "hydrodynamic" effective field theory techniques to an ersatz Fermi liquid. Our effective theory, which captures the correlation functions of density operators at each angle on the Fermi surface, can only deviate from conventional Fermi liqu
Externí odkaz:
http://arxiv.org/abs/2402.14066
Autor:
Mehta, Umang
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-geometric structure described by the group of canonical transformations of
Externí odkaz:
http://arxiv.org/abs/2307.02536
Publikováno v:
Adv. Theor. Math. Phys. 27 (2023), 193-310
We present a conjecture for the crossing symmetry rules for Chern-Simons gauge theories interacting with massive matter in $2+1$ dimensions. Our crossing rules are given in terms of the expectation values of particular tangles of Wilson lines, and re
Externí odkaz:
http://arxiv.org/abs/2210.07272
Publikováno v:
Phys. Rev. Research 4, 033131 (2022)
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 depends on the spacetime coordinates and on the position on the Fermi su
Externí odkaz:
http://arxiv.org/abs/2203.05004
Autor:
Saiyad, Anwar H., Godhani, Dinesh R., Mehta, Umang P., Parmar, Kuldip P., Mehta, Jignasu P., Patel, Harun M., Ahmad, Iqrar
Publikováno v:
In Journal of Molecular Structure 5 February 2025 1321 Part 4
We show that a system of particles on the lowest Landau level can be coupled to a probe U(1) gauge field $\mathcal A_\mu$ in such a way that the theory is invariant under a noncommutative U(1) gauge symmetry. While the temporal component $\mathcal A_
Externí odkaz:
http://arxiv.org/abs/2110.13875
Publikováno v:
SciPost Phys. 12, 050 (2022)
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 physics of the lowest Landau level (LLL) limit can be interpreted as th
Externí odkaz:
http://arxiv.org/abs/2103.09826
Certain CFTs with a global $U(1)$ symmetry become superfluids when coupled to a chemical potential. When this happens, a Goldstone effective field theory controls the spectrum and correlators of the lightest large charge operators. We show that in 3d
Externí odkaz:
http://arxiv.org/abs/2102.05046
Publikováno v:
J. High Energ. Phys. 2021, 101 (2021)
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 the form $\theta=\pi (1-\frac{1}{k})$ where $k$ is a large integer, th
Externí odkaz:
http://arxiv.org/abs/2012.07991
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