Interplay between binary and three-body interactions and enhancement of stability in trapless dipolar Bose-Einstein condensates
Abstract
We investigate the nonlocal Gross-Pitaevskii (GP) equation with long-range dipole-dipole and contact interactions (including binary and three-body collisions). We address the impact of the three-body interaction on stabilizing trapless dipolar Bose-Einstein condensates (BECs). It is found that the dipolar BECs exhibit stability not only for the usual combination of attractive binary and repulsive three-body interactions, but also for the case when these terms have opposite signs. The trapless stability of the dipolar BECs may be further enhanced by time-periodic modulation of the three-body interaction imposed by means of Feshbach resonance. The results are produced analytically using the variational approach and confirmed by numerical simulations.
Keywords
Cite
@article{arxiv.2201.08929,
title = {Interplay between binary and three-body interactions and enhancement of stability in trapless dipolar Bose-Einstein condensates},
author = {Sabari Subramaniyan and Kishor Kumar Ramavarmaraja and Radha Ramaswamy and Boris A Malomed},
journal= {arXiv preprint arXiv:2201.08929},
year = {2022}
}
Comments
To be published in Applied Sciences (special issue on "Quantum Degenerate Atomic Mixtures")