Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Qi, Marvin"'
Inspired by the hunt for new phases of matter in quantum mixed states, it has recently been proposed that the equivalence of microcanonical and canonical ensembles in statistical mechanics is a manifestation of strong-to-weak spontaneous symmetry bre
Externí odkaz:
http://arxiv.org/abs/2407.08760
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:
Qi, Marvin, Lucas, Andrew
We build a minimal model of dissipative vortex dynamics in two spatial dimensions, subject to a kinematic constraint: dipole conservation. The additional conservation law implies anomalously slow decay rates for vortices. We argue that this model of
Externí odkaz:
http://arxiv.org/abs/2310.00051
Autor:
Qi, Marvin, Stephen, David T., Wen, Xueda, Spiegel, Daniel, Pflaum, Markus J., Beaudry, Agnès, Hermele, Michael
We employ matrix product states (MPS) and tensor networks to study topological properties of the space of ground states of gapped many-body systems. We focus on families of states in one spatial dimension, where each state can be represented as an in
Externí odkaz:
http://arxiv.org/abs/2305.07700
Publikováno v:
Phys. Rev. B 108, 144509 (2023)
We examine the hydrodynamics of systems with spontaneously broken multipolar symmetries using a systematic effective field theory. We focus on the simplest non-trivial setting: a system with charge and dipole symmetry, but without momentum conservati
Externí odkaz:
http://arxiv.org/abs/2303.09573
Publikováno v:
Reviews in Mathematical Physics, (2024) 2460003 (87 pages)
In this paper, we present a homotopical framework for studying invertible gapped phases of matter from the point of view of infinite spin lattice systems, using the framework of algebraic quantum mechanics. We define the notion of quantum state types
Externí odkaz:
http://arxiv.org/abs/2303.07431
We present a theory of hydrodynamics for a vector U(1) charge in 2+1 dimensions, whose rotational symmetry is broken to the point group of an equilateral triangle. We show that it is possible for this U(1) to have a chiral anomaly. The hydrodynamic c
Externí odkaz:
http://arxiv.org/abs/2209.08108
Publikováno v:
SciPost Phys. 14, 029 (2023)
We extend recent work on hydrodynamics with global multipolar symmetries -- known as "fracton hydrodynamics" -- to systems in which the multipolar symmetries are gauged. We refer to the latter as "fracton magnetohydrodynamics", in analogy to conventi
Externí odkaz:
http://arxiv.org/abs/2205.05695
Autor:
Spiegel, Daniel, Moreno, Juan, Qi, Marvin, Hermele, Michael, Beaudry, Agnès, Pflaum, Markus J.
Publikováno v:
Reviews in Mathematical Physics Vol. 33 (2022) 2250031 (84 pages)
We consider how the outputs of the Kadison transitivity theorem and Gelfand-Naimark-Segal construction may be obtained in families when the initial data are varied. More precisely, for the Kadison transitivity theorem, we prove that for any nonzero i
Externí odkaz:
http://arxiv.org/abs/2112.13315
Autor:
Wen, Xueda, Qi, Marvin, Beaudry, Agnès, Moreno, Juan, Pflaum, Markus J., Spiegel, Daniel, Vishwanath, Ashvin, Hermele, Michael
Publikováno v:
Phys. Rev. B 108, 125147 (2023)
This paper is concerned with the physics of parametrized gapped quantum many-body systems, which can be viewed as a generalization of conventional topological phases of matter. In such systems, rather than considering a single Hamiltonian, one consid
Externí odkaz:
http://arxiv.org/abs/2112.07748