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arXiv · 2109.08366

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

S. Mostafa Moniri·Heshmatollah Yavari·Elnaz Darsheshdar
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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.

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S. Mostafa Moniri, Heshmatollah Yavari, Elnaz Darsheshdar. 2021-09-17. Three-body and Coulomb interactions in a quasi two-dimensional dipolar Bose condensed gas. https://doi.org/10.1016/j.aop.2022.168788

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