Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2005-03-03
Physical Review Letters 93, 170202 (2004)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 3 figures, 1 table
Scientific paper
10.1103/PhysRevLett.93.170202
We construct a quantum Monte Carlo algorithm for interacting fermions using the two-body density as the fundamental quantity. The central idea is mapping the interacting fermionic system onto an auxiliary system of interacting bosons. The correction term is approximated using correlated wave functions for the interacting system, resulting in an effective potential that represents the nodal surface. We calculate the properties of 3He and find good agreement with experiment and with other theoretical work. In particular, our results for the total energy agree well with other calculations where the same approximations were implemented but the standard quantum Monte Carlo algorithm was used
Brualla L.
Fantoni Stefano
Hetenyi Balazs
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