Local chiral effective field theory interactions and quantum Monte Carlo applications
Nuclear Theory
2014-11-27 v2 Quantum Gases
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We present details of the derivation of local chiral effective field theory interactions to next-to-next-to-leading order, and show results for nucleon-nucleon phase shifts and deuteron properties for these potentials. We then perform systematic auxiliary-field diffusion Monte Carlo calculations for neutron matter based on the developed local chiral potentials at different orders. This includes studies of the effects of the spectral-function regularization and of the local regulators. For all orders, we compare the quantum Monte Carlo results with perturbative many-body calculations and find excellent agreement for low cutoffs.
Keywords
Cite
@article{arxiv.1406.0454,
title = {Local chiral effective field theory interactions and quantum Monte Carlo applications},
author = {A. Gezerlis and I. Tews and E. Epelbaum and M. Freunek and S. Gandolfi and K. Hebeler and A. Nogga and A. Schwenk},
journal= {arXiv preprint arXiv:1406.0454},
year = {2014}
}
Comments
17 pages, 11 figures, published version, LA-UR-14-23894