In the large-charge EFT of neutrons, effective-range corrections to the two-point function first appear at second order in the effective range, and the deformed theory has a narrow but usable perturbative window for Q=3 to 6 final-state neutrons.
Properties of trapped neutrons interacting with realistic nuclear Hamiltonians
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abstract
We calculate properties of neutron drops in external potentials using both quantum Monte Carlo and no-core full configuration techniques. The properties of the external wells are varied to examine different density profiles. We compare neutron drop results given by a selection of nuclear Hamiltonians, including realistic two-body interactions as well as several three-body forces. We compute a range of properties for the neutron drops: ground-state energies, spin-orbit splittings, excitation energies, radial densities and rms radii. We compare the equations of state for neutron matter for several of these Hamiltonians. Our results can be used as benchmarks to test other many-body techniques, and to constrain properties of energy-density functionals.
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Unnuclear matter at large-charge
In the large-charge EFT of neutrons, effective-range corrections to the two-point function first appear at second order in the effective range, and the deformed theory has a narrow but usable perturbative window for Q=3 to 6 final-state neutrons.