Pairing symmetry in an anisotropic Fermi superfluid under a p -wave Feshbach resonance

Chi Ho Cheng, Sung Kit Yip

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The anisotropic Fermi superfluid of ultra-cold Fermi atoms under the p -wave Feshbach resonance is studied theoretically. The pairing symmetry of the ground state is determined by the strength of the atom-atom magnetic dipole interaction. It is kz for a strong dipole interaction; while it becomes kz -iβ ky, up to a rotation about z, for a weak one. (Here β<1 is a numerical coefficient.) By changing the external magnetic field or the atomic gas density, a phase transition between these two states can be driven. We discuss how the pairing symmetry of the ground state can be determined in the time-of-flight experiments.

Original languageEnglish
Article number064517
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number6
DOIs
Publication statusPublished - 2006 Mar 2

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Crystal symmetry
Atoms
Ground state
symmetry
atoms
Density of gases
ground state
monatomic gases
gas density
magnetic dipoles
Phase transitions
interactions
Magnetic fields
dipoles
coefficients
magnetic fields
Experiments

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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Pairing symmetry in an anisotropic Fermi superfluid under a p -wave Feshbach resonance. / Cheng, Chi Ho; Yip, Sung Kit.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 73, No. 6, 064517, 02.03.2006.

Research output: Contribution to journalArticle

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