Phase Separation in a Polarized Fermi Gas at Zero Temperature

Journal Article · Fri Jan 25 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.030401· OSTI ID:21020954

Pilati, S; Giorgini, S ^[1]

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1. Dipartimento di Fisica, Universita di Trento and CNR-INFM BEC Center, I-38050 Povo, Trento (Italy)

We investigate the phase diagram of asymmetric two-component Fermi gases at zero temperature as a function of polarization and interaction strength. The equations of state of the uniform superfluid and normal phase are determined using quantum Monte Carlo simulations. We find three different mixed states, where the superfluid and the normal phase coexist in equilibrium, corresponding to phase separation between (a) the polarized superfluid and the fully polarized normal gas, (b) the polarized superfluid and the partially polarized normal gas, and (c) the unpolarized superfluid and the partially polarized normal gas.

• OSTI ID: 21020954
• Journal Information: Physical Review Letters, Vol. 100, Issue 3; Other Information: DOI: 10.1103/PhysRevLett.100.030401; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMMETRY
COMPUTERIZED SIMULATION
EQUATIONS OF STATE
EQUILIBRIUM
FERMI GAS
MIXED STATE
MONTE CARLO METHOD
PHASE DIAGRAMS
POLARIZATION
SUPERFLUIDITY
TEMPERATURE ZERO K