Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 033611 |
| Fachzeitschrift | Physical Review A - Atomic, Molecular, and Optical Physics |
| Jahrgang | 88 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 10 Sept. 2013 |
Abstract
Using a combination of results from exact mappings and from mean-field theory we explore the phase diagram of quasi-one-dimensional systems of identical fermions with attractive dipolar interactions. We demonstrate that at low density these systems provide a realization of a single-component one-dimensional Fermi gas with a generalized contact interaction. Using an exact duality between one-dimensional Fermi and Bose gases, we show that when the dipole moment is strong enough, bound many-body states exist, and we calculate the critical coupling strength for the emergence of these states. At higher densities, the Hartree-Fock approximation is accurate, and by combining the two approaches we determine the structure of the phase diagram. The many-body bound states should be accessible in future experiments with ultracold polar molecules.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Physical Review A - Atomic, Molecular, and Optical Physics, Jahrgang 88, Nr. 3, 033611, 10.09.2013.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Self-bound many-body states of quasi-one-dimensional dipolar Fermi gases
T2 - Exploiting Bose-Fermi mappings for generalized contact interactions
AU - Deuretzbacher, Frank
AU - Bruun, G. M.
AU - Pethick, C. J.
AU - Jona-Lasinio, Mattia
AU - Reimann, Stephanie M.
AU - Santos, Luis
PY - 2013/9/10
Y1 - 2013/9/10
N2 - Using a combination of results from exact mappings and from mean-field theory we explore the phase diagram of quasi-one-dimensional systems of identical fermions with attractive dipolar interactions. We demonstrate that at low density these systems provide a realization of a single-component one-dimensional Fermi gas with a generalized contact interaction. Using an exact duality between one-dimensional Fermi and Bose gases, we show that when the dipole moment is strong enough, bound many-body states exist, and we calculate the critical coupling strength for the emergence of these states. At higher densities, the Hartree-Fock approximation is accurate, and by combining the two approaches we determine the structure of the phase diagram. The many-body bound states should be accessible in future experiments with ultracold polar molecules.
AB - Using a combination of results from exact mappings and from mean-field theory we explore the phase diagram of quasi-one-dimensional systems of identical fermions with attractive dipolar interactions. We demonstrate that at low density these systems provide a realization of a single-component one-dimensional Fermi gas with a generalized contact interaction. Using an exact duality between one-dimensional Fermi and Bose gases, we show that when the dipole moment is strong enough, bound many-body states exist, and we calculate the critical coupling strength for the emergence of these states. At higher densities, the Hartree-Fock approximation is accurate, and by combining the two approaches we determine the structure of the phase diagram. The many-body bound states should be accessible in future experiments with ultracold polar molecules.
UR - http://www.scopus.com/inward/record.url?scp=84884855930&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.88.033611
DO - 10.1103/PhysRevA.88.033611
M3 - Article
AN - SCOPUS:84884855930
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 3
M1 - 033611
ER -