Unitary polarized Fermi gas under adiabatic rotation

Anno: 2008

Autori: Bausmerth I., Recati A., Stringari S.

Affiliazione autori: Dipartimento di Fisica, Università di Trento and CNR-INFM BEC Center, I-38050 Povo, Trento, Italy;
Physik Department, Technische Universität München, D-85747 Garching, Germany

Abstract: 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↓∕n↑ 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.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 78 (6)      Da Pagina: 063603-1  A: 063603-8

Maggiori informazioni: We acknowledge very useful discussions with Frederic Chevy, Stefano Giorgini, Carlos Lobo, Lev P. Pitaevskii, Christophe Salomon, Alberto Valli, and Martin Zwierlein. We also acknowledge support by the Ministero dell
Parole chiavi: Bose-Einstein condensation; density functional theory; fermion systems; phase separation; polarisation
DOI: 10.1103/PhysRevA.78.063603

Citazioni: 10
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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