Three-body and Coulomb interactions in a quasi-two-dimensional dipolar Bose-condensed gas

Author(s)

Moniri, Seyed Mostafa ; Yavari, Heshmatollah ; Darsheshdar, Elnaz

• Document type: Journal article
• Source: ANNALS OF PHYSICS; v. 438, p. 8-pg., 2022-02-09.

Abstract

In this paper, we studied a dilute quasi-two-dimensional dipolar Bose-condensed with two- and three-body contact, and Coulomb interactions using the Hartree-Fock-Bogoliubov-Popov approximation. We analyze numerically the effects of three-body contact, and Coulomb interactions on the energy spectrum, the quantum and thermal noncondensate fraction of the system. We show that increasing the three-body contact and Coulomb interactions leads to the appearance of rotonization and condensate instability at stronger dipole-dipole interaction. Also we find that the temperature dependence of the thermal noncondensate fraction is linear at low temperature.(c) 2022 Elsevier Inc. All rights reserved. (AU)

• FAPESP's process: 18/10813-2 - Quantum scattering of light and entanglement in cold atomic clouds
• Grantee: Elnaz Darsheshdar
• Support Opportunities: Scholarships in Brazil - Post-Doctoral