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

verfasst von

Alan Morningstar, Nicholas O'Dea, Jonas Richter

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.

Organisationseinheit(en)

Institut für Theoretische Physik

Externe Organisation(en)

Stanford University

Typ

Artikel

Journal

Physical Review B

Band

108

ISSN

2469-9950

Publikationsdatum

24.07.2023

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Physik der kondensierten Materie

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2304.12354 (Zugang: Offen)
https://doi.org/10.1103/PhysRevB.108.L020304 (Zugang: Geschlossen)