Self-bound droplet of Bose and Fermi atoms in one dimension: Collective properties in mean-field and Tonks-Girardeau regimes

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We investigate a dilute mixture of bosons and spin-polarized fermions in one-dimension. With an attractive Bose-Fermi scattering length the ground-state is a self-bound droplet, i.e. a Bose-Fermi bright soliton where the Bose and Fermi clouds are superimposed. We find that the quantum fluctuations stabilize the Bose-Fermi soliton such that the one-dimensional bright soliton exists for any finite attractive Bose-Fermi scattering length. We study density profile and collective excitations of the atomic bright soliton showing that they depend on the bosonic regime involved: mean-field or Tonks-Girardeau.
9 pages, 5 figures, to be published in Phys. Rev. A

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Other Condensed Matter, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/124260

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0701752
 http://arxiv.org/abs/cond-mat/0701752
 Phys. Rev. A 75, 023616 (2007)

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arXiv