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arXiv · 2012.07444

Polarization angle dependence of the breathing modes in confined one-dimensional dipolar bosons

S. De Palo·E. Orignac·M. L. Chiofalo·R. Citro
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Abstract

Probing the radial collective oscillation of a trapped quantum system is an accurate experimental tool to investigate interactions and dimensionality effects. We consider a fully polarized quasi-one dimensional dipolar quantum gas of bosonic dysprosium atoms in a parabolic trap at zero temperature. We model the dipolar gas with an effective quasi-one dimensional Hamiltonian in the single-mode approximation, and derive the equation of state using a variational approximation based on the Lieb-Liniger gas Bethe Ansatz wavefunction or perturbation theory. We calculate the breathing mode frequencies while varying polarization angles by a sum-rule approach, and find them in good agreement with recent experimental findings.

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S. De Palo, E. Orignac, M. L. Chiofalo, R. Citro. 2020-12-14. Polarization angle dependence of the breathing modes in confined one-dimensional dipolar bosons. https://doi.org/10.1103/physrevb.103.115109

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