Ground states of two-dimensional tilted dipolar bosons with density-induced hopping

Chao Zhang, Jin Zhang, Jin Yang, and Barbara Capogrosso-Sansone
Phys. Rev. A 103, 043333 – Published 29 April 2021; Erratum Phys. Rev. A 105, 019901 (2022)

Abstract

Motivated by recent experiments with ultracold magnetic atoms trapped in optical lattices where the orientation of atomic dipoles can be fully controlled by external fields, we study, by means of quantum Monte Carlo, the ground-state properties of dipolar bosons trapped in a two-dimensional lattice with density-induced hopping and where the dipoles are tilted along the xz plane. We present ground-state phase diagrams of the above system at different tilt angles. We find that as the dipolar interaction increases, the superfluid phase at half-filling factor is destroyed in favor of either a checkerboard or stripe solid phase for tilt angle θ30 or θ30, respectively. More interesting physics happens at tilt angles θ58, where we find that as the dipolar interaction strength increases, solid phases first appear at filling factor lower than 0.5. Moreover, unlike what is observed at lower tilt angles, we find that at half filling, a stripe supersolid intervenes between the superfluid and stripe solid phase.

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  • Received 15 December 2020
  • Revised 24 March 2021
  • Accepted 15 April 2021

DOI:https://doi.org/10.1103/PhysRevA.103.043333

©2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Erratum

Erratum: Ground states of two-dimensional tilted dipolar bosons with density-induced hopping [Phys. Rev. A 103, 043333 (2021)]

Chao Zhang, Jin Zhang, Jin Yang, and Barbara Capogrosso-Sansone
Phys. Rev. A 105, 019901 (2022)

Authors & Affiliations

Chao Zhang1,2,*,†, Jin Zhang3,*,‡, Jin Yang4, and Barbara Capogrosso-Sansone5

  • 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 2Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA
  • 3Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242, USA
  • 4Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
  • 5Department of Physics, Clark University, Worcester, Massachusetts 01610, USA

  • *These authors contributed equally to this paper.
  • chaozhang@umass.edu
  • jin-zhang@uiowa.edu

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Issue

Vol. 103, Iss. 4 — April 2021

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