UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Quasi-one-dimensional polarized fermi superfluids

Parish, MM; Baur, SK; Mueller, EJ; Huse, DA; (2007) Quasi-one-dimensional polarized fermi superfluids. PHYS REV LETT , 99 (25) , Article 250403. 10.1103/PhysRevLett.99.250403. Green open access

[thumbnail of 1332991.pdf]
Preview
PDF
1332991.pdf

Download (157kB)

Abstract

We calculate the zero-temperature (T = 0) phase diagram of a polarized two-component Fermi gas in an array of weakly coupled parallel one-dimensional (1D) "tubes" produced by a two-dimensional optical lattice. Increasing the lattice strength drives a crossover from three-dimensional (3D) to 1D behavior, stabilizing the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) modulated superfluid phase. We argue that the most promising regime for observing the FFLO phase is in the quasi-1D regime, where the atomic motion is largely 1D but there is weak tunneling in the other directions that stabilizes long-range order. In the FFLO phase, we describe a phase transition where the quasiparticle spectrum changes from gapless near the 3D regime to gapped in quasi-1D.

Type: Article
Title: Quasi-one-dimensional polarized fermi superfluids
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.99.250403
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.99.250403
Language: English
Additional information: © 2007 The American Physical Society
Keywords: PHASE-SEPARATION, GROUND-STATE, SUPERCONDUCTIVITY, FIELD, GAS, DIAGRAM
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1332991
Downloads since deposit
190Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item