The achievement of Bose–Einstein condensation in ultra-cold vapours of alkali atoms has
given enormous impulse to the study of dilute atomic gases in condensed quantum states …

So, ultimately, in order to understand nature it may be necessary to have a deeper
understanding of mathematical relationships. But the real reason is that the subject is …

We study the effects of many-body correlations in trapped ultracold atomic Bose gases. We
calculate the ground state of the gas using a ground-state auxiliary-field quantum Monte …

In this work we compare the results of the Gross-Pitaevskii and modified Gross-Pitaevskii
equations with ab initio variational Monte Carlo calculations for Bose-Einstein condensates …

We investigate two-species Bose gases in traps with various interactions using variational
quantum Monte Carlo (VMC) techniques at zero temperature. The bosons are represented …

The static fluctuation approximation (SFA) is applied to compute the thermodynamic
properties of a trapped two-dimensional (2D) interacting hard-sphere (HS) Bose gas in the …

The ground-state properties of a system with a small number of interacting bosons over a
wide range of densities are investigated. The system is confined in a two-dimensional …

Bose-Einstein condensation in trapped gases of 85 Rb atoms can now be obtained in the
large gas-parameter region in presence of Feshbach resonance and the gas density which …

The aim of this thesis is to develop a diffusion Monte Carlo (DMC) and a Variational Monte
Carlo (VMC) program written in OpenCL in order to test the potential for using Graphical …

The effect of strongly repulsive interactions on the tunneling amplitude of hard-sphere (HS)
bosons confined in a simple cubic optical lattice plus tight external harmonic confinement in …