Physics – Condensed Matter
Scientific paper
1998-03-10
Physics
Condensed Matter
13 pages, RevTeX + 3 encapsulated postscript figures
Scientific paper
10.1103/PhysRevLett.80.4558
A new method for the stabilization of the sign problem in the Green Function Monte Carlo technique is proposed. The method is devised for real lattice Hamiltonians and is based on an iterative ''stochastic reconfiguration'' scheme which introduces some bias but allows a stable simulation with constant sign. The systematic reduction of this bias is in principle possible. The method is applied to the frustrated J1-J2 Heisenberg model, and tested against exact diagonalization data. Evidence of a finite spin gap for J2/J1 >~ 0.4 is found in the thermodynamic limit.
No associations
LandOfFree
Green Function Monte Carlo with Stochastic Reconfiguration does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Green Function Monte Carlo with Stochastic Reconfiguration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Green Function Monte Carlo with Stochastic Reconfiguration will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-403538