31 citations · 50 across the 2 of their papers we have counts for
4 papers
Zero-variance zero-bias quantum Monte Carlo estimators of the spherically and system-averaged pair density
Julien Toulouse, Roland Assaraf, C. J. Umrigar
We construct improved quantum Monte Carlo estimators for the spherically- and system-averaged electron pair density (i.e. the probability density of finding two electrons separated…
The Fermion Monte Carlo revisited
Roland Assaraf, Michel Caffarel, Anatole Khelif
In this work we present a detailed study of the Fermion Monte Carlo algorithm (FMC), a recently proposed stochastic method for calculating fermionic ground-state energies [M.H. Kal…
Zero-Variance Zero-Bias Principle for Observables in quantum Monte Carlo: Application to Forces
Roland Assaraf, Michel Caffarel
A simple and stable method for computing accurate expectation values of observable with Variational Monte Carlo (VMC) or Diffusion Monte Carlo (DMC) algorithms is presented. The ba…
Dynamical Symmetry Enlargement Versus Spin-Charge Decoupling in the One-Dimensional SU(4) Hubbard Model
R. Assaraf, P. Azaria, E. Boulat +2
We investigate dynamical symmetry enlargement in the half-filled SU(4) Hubbard chain using non-perturbative renormalization group and Quantum Monte Carlo techniques. A spectral gap…