Vortex excitation in superfluid 4He: A Diffusion Monte Carlo study
凝聚态物理
2009-10-28 v1
摘要
We present a diffusion Monte Carlo study of a single vortex in two-dimensional superfluid liquid He within the fixed node approximation. We use both the Feynman phase and an improved phase which includes backflow correlations to model the nodal surface of the vortex wavefunction. Results for the particle density, core radius and excitation energies are presented.
引用
@article{arxiv.cond-mat/9606110,
title = {Vortex excitation in superfluid 4He: A Diffusion Monte Carlo study},
author = {S. Giorgini and J. Boronat and J. Casulleras},
journal= {arXiv preprint arXiv:cond-mat/9606110},
year = {2009}
}
备注
11 pages, 3 postscript figures, Revtex