aqora

Unconventional interaction between vortices in a polarized Fermi gas

Vladimir M. Stojanović, W. Vincent Liu, Yong Baek Kim

arXiv:0710.2522Annals of PhysicsOct 25, 20079 citations

Life Cycle of Superfluid Vortices in the Unitary Fermi Gas

Gabriel Wlazłowski, Aurel Bulgac, Michael McNeil Forbes +1 more

Apr 3, 20140 citations

Vortices and superfluidity in a strongly interacting Fermi gas

Martin W. Zwierlein, J. R. Abo-Shaeer, André Schirotzek +2 more

arXiv:cond-mat/0505635NatureJun 1, 20051,016 citations

Spin-polarized vortices with reversed circulation

Piotr Magierski, Gabriel Wlazłowski, Andrzej Makowski +1 more

We present the analysis of the structure of fermionic vortices with the spin-polarized core from a weak coupling limit to the unitary regime. We show the mechanism for the generation of the reversed circulation in the vortex core induced by an excess of majority spin particles. We introduce the classification of the polarized vortices based on the number of Fermi circles where the minigap vanishes. This provides a unique description of the vortex as one cannot smoothly map wave functions into one another corresponding to vortices differing by the number of Fermi circles. The effective mass of quasiparticles along the vortex core is analyzed and its role in the propagation of spin-polarization along the vortex line is discussed.We present the analysis of the structure of fermionic vortices with the spin-polarized core from a weak coupling limit to the unitary regime. We show the mechanism for the generation of the reversed circulation in the vortex core induced by an excess of majority spin particles. We introduce the classification of the polarized vortices based on the number of Fermi circles where the minigap vanishes. This provides a unique description of the vortex as one cannot smoothly map wave functions into one another corresponding to vortices differing by the number of Fermi circles. The effective mass of quasiparticles along the vortex core is analyzed and its role in the propagation of spin-polarization along the vortex line is discussed.

arXiv:2011.13021Physical Review ASep 29, 202212 citations

Unitary polarized Fermi gas under adiabatic rotation

I. Bausmerth, Alessio Recati, S. Stringari

We discuss the effect of an adiabatic rotation on the phase separation between the superfluid and normal component of a trapped polarized Fermi gas at unitarity and zero temperature, under the assumption that quantized vortices are not formed. We show that the Chandrasekhar-Clogston limit ${n}_{\ensuremath{\downarrow}}∕{n}_{\ensuremath{\uparrow}}$ characterizing the local polarization in the normal phase at the interface is enhanced by the rotation as a consequence of the centrifugal effect. The density profiles (local and column integral) of the two spin species are calculated as a function of the angular velocity for different values of the polarization. The critical value of the angular velocity at which the superfluid exhibits a spontaneous quadrupole deformation is also calculated for the unpolarized case.We discuss the effect of an adiabatic rotation on the phase separation between the superfluid and normal component of a trapped polarized Fermi gas at unitarity and zero temperature, under the assumption that quantized vortices are not formed. We show that the Chandrasekhar-Clogston limit ${n}_{\ensuremath{\downarrow}}∕{n}_{\ensuremath{\uparrow}}$ characterizing the local polarization in the normal phase at the interface is enhanced by the rotation as a consequence of the centrifugal effect. The density profiles (local and column integral) of the two spin species are calculated as a function of the angular velocity for different values of the polarization. The critical value of the angular velocity at which the superfluid exhibits a spontaneous quadrupole deformation is also calculated for the unpolarized case.

arXiv:0806.1885Physical Review ADec 2, 200811 citations

Vortex bound states in polarized Fermi gases at unitarity

Xia Liu

Jan 1, 20080 citations

The Structure of Polarized Vortices in the Unitary Fermi Gas

Related papers

The Structure of Polarized Vortices in the Unitary Fermi Gas

Related papers