Journal
PHYSICAL REVIEW A
Volume 92, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.92.033603
Keywords
-
Categories
Funding
- DOE [DE-SC0008627]
- NSF [DMR-1409510]
- Simons Foundation
- Office of Science of the U.S. Department of Energy [DE-AC05-00OR22725]
- U.S. Department of Energy (DOE) [DE-SC0008627] Funding Source: U.S. Department of Energy (DOE)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1409510] Funding Source: National Science Foundation
Ask authors/readers for more resources
Exact calculations are performed on the two-dimensional strongly interacting unpolarized uniform Fermi gas with a zero-range attractive interaction. Two auxiliary-field approaches are employed which accelerate the sampling of imaginary-time paths using BCS trial wave functions and a force bias technique. Their combination enables calculations on large enough lattices to reliably compute ground-state properties in the thermodynamic limit. An equation of state is obtained with a parametrization provided, which can serve as a benchmark and allow accurate comparisons with experiments. The pressure, contact parameter, and condensate fraction are determined systematically vs k(F)a. The momentum distribution, pairing correlation, and the structure of the pair wave function are computed. The use of force bias to accelerate the Metropolis sampling of auxiliary fields in determinantal approaches is discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available