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arXiv · 2004.09859

Variational theory for the ground state and collective excitations of an elongated dipolar condensate

P. Blair Blakie·D. Baillie·Sukla Pal
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Abstract

We develop a variational theory for a dipolar condensate in an elongated (cigar shaped) confinement potential. Our formulation provides an effective one-dimensional extended meanfield theory for the ground state and its collective excitations. We apply our theory to investigate the properties of rotons in the system comparing the variational treatment to a full numerical solution. We consider the effect of quantum fluctuations on the scattering length at which the roton excitation softens to zero energy.

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P. Blair Blakie, D. Baillie, Sukla Pal. 2020-04-21. Variational theory for the ground state and collective excitations of an elongated dipolar condensate. https://doi.org/10.1088/1572-9494%2Fab95fa

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