Article Dans Une Revue Physical Review B Année : 2021

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

Résumé

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 wave function or perturbation theory. We calculate the breathing mode frequencies while varying polarization angles by a sum-rule approach and find they are in good agreement with recent experimental findings.

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hal-03161767 , version 1 (28-04-2025)

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S. de Palo, E. Orignac, M. Chiofalo, R. Citro. Polarization angle dependence of the breathing mode in confined one-dimensional dipolar bosons. Physical Review B, 2021, 103 (11), pp.115109. ⟨10.1103/PhysRevB.103.115109⟩. ⟨hal-03161767⟩
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