Change search
ReferencesLink to record
Permanent link

Direct link
Self-bound many-body states of quasi-one-dimensional dipolar Fermi gases: Exploiting Bose-Fermi mappings for generalized contact interactions
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
Show others and affiliations
2013 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 88, no 3, 033611- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 88, no 3, 033611- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-129616DOI: 10.1103/PhysRevA.88.033611ISI: 000324139900004ScopusID: 2-s2.0-84884855930OAI: diva2:653431
Swedish Research Council

QC 20131004

Available from: 2013-10-04 Created: 2013-10-03 Last updated: 2013-10-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Pethick, Christopher J.
By organisation
Nordic Institute for Theoretical Physics NORDITA
In the same journal
Physical Review A. Atomic, Molecular, and Optical Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 12 hits
ReferencesLink to record
Permanent link

Direct link