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6 papers · 2 filters
Superfluid and Mott Insulator phases of one-dimensional Bose-Fermi mixtures
A. Zujev, A. Baldwin, R. T. Scalettar +3
We study the ground state phases of Bose-Fermi mixtures in one-dimensional optical lattices with quantum Monte Carlo simulations using the Canonical Worm algorithm. Depending on th…
The Stochastic Green Function (SGF) algorithm
V. G. Rousseau
We present the Stochastic Green Function (SGF) algorithm designed for bosons on lattices. This new quantum Monte Carlo algorithm is independent of the dimension of the system, work…
Fluctuation-dissipation theorem for thermo-refractive noise
Yuri Levin
We introduce a simple prescription for calculating the spectra of thermal fluctuations of temperature-dependent quantities of the form $\hat{δT}(t)=\int d^3\vec{r} δT(\vec{r},t) q(…
Universality class of the pair contact process with diffusion
F. Smallenburg, G. T. Barkema
The pair contact process with diffusion (PCPD) is studied with a standard Monte Carlo approach and with simulations at fixed densities. A standard analysis of the simulation result…
Quantum phases of mixtures of atoms and molecules on optical lattices
V. G. Rousseau, P. J. H. Denteneer
We investigate the phase diagram of a two-species Bose-Hubbard model including a conversion term, by which two particles from the first species can be converted into one particle o…
The tail of the contact force distribution in static granular materials
Adrianne R. T. van Eerd, Wouter G. Ellenbroek, Martin van Hecke +2
We numerically study the distribution P(f) of contact forces in frictionless bead packs, by averaging over the ensemble of all possible force network configurations. We resort to u…