Pairing in pure neutron matter

Abstract

We review the long standing problem of superfluid pairing in pure neutron matter. For the $s$-wave pairing, we summarize the state of the art of many-body approaches including different $nn$ interactions, medium polarization, short-range correlations and BCS-BEC crossover effects, and compare them with quantum Monte Carlo results at low-densities. We also address pairing in the $p$-wave, which appears at higher densities and hence has large uncertainties due to the poorly constrained interactions, medium effects and many-body forces.

arXiv comment15 pages, Mini-review for EPJ Special Topics, v2: minor changes

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Cited by in corpus (10)

• The ${}^1$S${}_0$ pairing gap in neutron matter
• Role of the effective range in the density-induced BEC-BCS crossover
• Equation of state of superfluid neutron matter with low-momentum interactions
• Microscopic calculation of the pinning energy of a vortex in the inner crust of a neutron star
• Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
• Neutron star cooling and mass distributions
• Effect of the equation of state for dilute neutron matter on the composition of the inner crust of neutron stars
• Exploring ${}^3{P}_0$ Superfluid in Dilute Spin-Polarized Neutron Matter
• Fast neutron star cooling in light of the PREX-2 experiment
• Hartree shift and pairing gap in ultracold Fermi gases in the framework of low-momentum interactions