Disorderless Quasi-localization of Polar Gases in One-Dimensional Lattices

authored by

Wei-Han Li, Arya Dhar, X. Deng, K. Kasamatsu, L. Barbiero, Luis Santos

Abstract

One-dimensional polar gases in deep optical lattices present a severely constrained dynamics due to the interplay between dipolar interactions, energy conservation, and finite bandwidth. The appearance of dynamically bound nearest-neighbor dimers enhances the role of the 1/r^{3} dipolar tail, resulting in the absence of external disorder, in quasi-localization via dimer clustering for very low densities and moderate dipole strengths. Furthermore, even weak dipoles allow for the formation of self-bound superfluid lattice droplets with a finite doping of mobile, but confined, holons. Our results, which can be extrapolated to other power-law interactions, are directly relevant for current and future lattice experiments with magnetic atoms and polar molecules.

Organisation(s)

Institute of Theoretical Physics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)

External Organisation(s)

Kindai University
Free University of Brussels (ULB)

Type

Article

Journal

Physical Review Letters

Volume

124

No. of pages

6

ISSN

0031-9007

Publication date

10.01.2020

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.48550/arXiv.1901.09762 (Access: Open)
https://doi.org/10.1103/PhysRevLett.124.010404 (Access: Closed)