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

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. CNISM and CNR-INFM, Unita di Padova, Via Marzolo 8, 35131 Padova (Italy)
  2. Instituto de Fisica Teorica, UNESP-Sao Paulo State University, 01.405-900 Sao Paulo, Sao Paulo (Brazil)
  3. Dipartimento di Fisica 'G. Galilei' and CNISM, Universita di Padova, Via Marzolo 8, 35131 Padova (Italy)
Publication Date:
OSTI Identifier:
20982167
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.023616; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMS; BOSE-EINSTEIN CONDENSATION; BOSONS; COLLECTIVE EXCITATIONS; DENSITY; DROPLETS; FERMIONS; FLUCTUATIONS; GROUND STATES; MEAN-FIELD THEORY; MIXTURES; ONE-DIMENSIONAL CALCULATIONS; SCATTERING LENGTHS; SOLITONS; SPIN ORIENTATION

Citation Formats

Salasnich, Luca, Adhikari, Sadhan K., and Toigo, Flavio. Self-bound droplet of Bose and Fermi atoms in one dimension: Collective properties in mean-field and Tonks-Girardeau regimes. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.023616.
Salasnich, Luca, Adhikari, Sadhan K., & Toigo, Flavio. Self-bound droplet of Bose and Fermi atoms in one dimension: Collective properties in mean-field and Tonks-Girardeau regimes. United States. doi:10.1103/PHYSREVA.75.023616.
Salasnich, Luca, Adhikari, Sadhan K., and Toigo, Flavio. Thu . "Self-bound droplet of Bose and Fermi atoms in one dimension: Collective properties in mean-field and Tonks-Girardeau regimes". United States. doi:10.1103/PHYSREVA.75.023616.
@article{osti_20982167,
title = {Self-bound droplet of Bose and Fermi atoms in one dimension: Collective properties in mean-field and Tonks-Girardeau regimes},
author = {Salasnich, Luca and Adhikari, Sadhan K. and Toigo, Flavio},
abstractNote = {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.},
doi = {10.1103/PHYSREVA.75.023616},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}
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