Abstract
We study the system of a dilute gas of fermions in 3-dimensions, with\nattractive interactions tuned to the unitarity point, using the\nnon-perturbative Restricted Path Integral Monte Carlo (R-PIMC) method. The\npairing and superfluid properties of this system are calculated at finite\ntemperature. The total energy at very low temperature from our results agrees\nclosely with that of previous ground-state Quantum Monte Carlo calculations. We\nidentify the temperature $T^\\ast\\approx 0.70\\epsilon_F$ below which pairing\ncorrelations develop, and estimate the critical temperature for the superfluid\ntransition $T_c\\approx 0.25\\epsilon_F$ from a finite size scaling analysis of\nthe superfluid density.\n
Keywords
PairingSuperfluidityUnitarityFermionPhysicsCondensed matter physicsQuantum mechanicsSuperconductivity
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Publication Info
- Year
- 2007
- Type
- article
- Volume
- 76
- Issue
- 16
- Citations
- 68
- Access
- Closed
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Cite This
Vamsi K. Akkineni,
David M. Ceperley,
Nandini Trivedi
(2007).
Pairing and superfluid properties of dilute fermion gases at unitarity.
Physical Review B
, 76
(16)
.
https://doi.org/10.1103/physrevb.76.165116
Identifiers
- DOI
- 10.1103/physrevb.76.165116