  Spin-polarized neutron matter is studied using chiral two- and three-body
forces. We focus, in particular, on predictions of the energy per particle in
ferromagnetic neutron matter at different orders of chiral effective field
theory and for different choices of the resolution scale. We discuss the
convergence pattern of the predictions and their cutoff dependence. We explore
to which extent fully polarized neutron matter behaves (nearly) like a free
Fermi gas. We also consider the more general case of partial polarization in
neutron matter as well as the presence of a small proton fraction. In other
words, in our calculations, we vary both spin and isospin asymmetries.
Confirming the findings of other microscopic calculations performed with
different approaches, we report no evidence for a transition to a polarized
phase of neutron matter5
