• DOI:10.1103/PhysRevB.105.205127
• Corpus ID: 246240946

Coupled hydrodynamics in dipole-conserving quantum systems

@article{Burchards2022CoupledHI,
  title={Coupled hydrodynamics in dipole-conserving quantum systems},
  author={A. G. Burchards and J. R. Feldmeier and Alexander Schuckert and Michael Jason Knap},
  journal={Physical Review B},
  year={2022}
}

• A. G. Burchards, J. Feldmeier, +1 author M. Knap
• Published 21 January 2022
• Physics
• Physical Review B

We investigate the coupled dynamics of charge and energy in interacting lattice models with dipole conservation. We formulate a generic hydrodynamic theory for this combination of fractonic constraints and numerically verify its applicability to the late-time dynamics of a specific bosonic quantum system by developing a microscopic non-equilibrium quantum field theory. Employing a self-consistent 1 /N approximation in the number of field components, we extract all entries of a generalized diffusion matrix and determine their dependence on microscopic model parameters. We discuss the relation of our results to experiments in ultracold atom quantum simulators.