Related papers: Hydrodynamics in long-range interacting systems with center-of-mass conservation

Hydrodynamics in long-range interacting systems with center-of-mass conservation

URL: http://arxiv.org/abs/2304.12354v1
Date: Mon, 24 Apr 2023 18:00:07 GMT
Title: Hydrodynamics in long-range interacting systems with center-of-mass conservation
Authors: Alan Morningstar, Nicholas O'Dea, and Jonas Richter
Abstract summary: In systems with a conserved density, the additional conservation of the center of mass has been shown to slow down the associated hydrodynamics. We develop a hydrodynamic theory for long-range center-of-mass-conserving systems.
Score: 0.4014524824655105
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: In systems with a conserved density, the additional conservation of the center of mass (dipole moment) has been shown to slow down the associated hydrodynamics. At the same time, long-range interactions generally lead to faster transport and information propagation. Here, we explore the competition of these two effects and develop a hydrodynamic theory for long-range center-of-mass-conserving systems. We demonstrate that these systems can exhibit a rich dynamical phase diagram containing subdiffusive, diffusive, and superdiffusive behaviors, with continuously varying dynamical exponents. We corroborate our theory by studying quantum lattice models whose emergent hydrodynamics exhibit these phenomena.

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