Multiworm algorithm quantum Monte Carlo
arXiv:1808.01030 · doi:10.1088/1402-4896/aadd7a
Abstract
We review the path-integral quantum Monte Carlo method and discuss its implementation by multiworm algorithms. We analyze in details the features of the algorithms, and focus our attention on the computation of the $N$-body density matrix to study N-body correlations. Finally, we demonstrate the validity of the algorithms on a system of dipolar bosons trapped in a stack of $N$ one-dimensional layers in the case of zero and finite inter-layer hopping.
20 pages, 10 figures