Quantum Monte Carlo study of the two-dimensional ferromagnet
Strongly Correlated Electrons
2015-06-15 v1 Quantum Gases
Abstract
We present Quantum Monte Carlo calculations that probe the paramagnet-ferromagnet phase transition in a two-dimensional Stoner Hamiltonian. With a screened Coulomb interaction we observe a first order ferromagnetic transition for short screening lengths, and a second order transition with a longer screening length, accompanied by a rising critical interaction strength. Finally, we discuss the consequences of our results for an ultracold atomic gas with finite ranged interactions.
Cite
@article{arxiv.1305.1198,
title = {Quantum Monte Carlo study of the two-dimensional ferromagnet},
author = {G. J. Conduit},
journal= {arXiv preprint arXiv:1305.1198},
year = {2015}
}
Comments
Accepted for publication in Phys. Rev. B