Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ab initio and phenomenological studies of the static response of neutron
  matter   We investigate the problem of periodically modulated strongly interacting
neutron matter. We carry out ab initio non-perturbative auxiliary-field
diffusion Monte Carlo calculations using an external sinusoidal potential in
addition to phenomenological two- and three-nucleon interactions. Several
choices for the wave function ansatz are explored and special care is taken to
extrapolate finite-sized results to the thermodynamic limit. We perform
calculations at various densities as well as at different strengths and
periodicities of the one-body potential. Our microscopic results are then used
to constrain the isovector term from energy-density functional theories of
nuclei at many different densities, while making sure to separate isovector
contributions from bulk properties. Lastly, we use our results to extract the
static density-density linear response function of neutron matter at different
densities. Our findings provide insights into inhomogeneous neutron matter and
are related to the physics of neutron star crusts and neutron-rich nuclei.

23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg