2008/05/16 by Stefano Gandolfi, S. Gandolfi, A. Yu. Illarionov +4 · 6 citations
Earth and Planetary Sciences · Physics and Astronomy · #High-pressure geophysics and materials #Nuclear Physics and Applications #Nuclear physics research studies #astro-ph #cond-mat.other #nucl-th
paper · pdf · doi:10.1103/physrevlett.101.132501
published as Phys.Rev.Lett.101:132501,2008
arxiv created 2008/05/16 · openalex publication_date 2008/09/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present a quantum Monte Carlo study of the zero-temperature equation of state of neutron matter and the computation of the 1S0 pairing gap in the low-density regime with rho < 0.04 fm(-3). The system is described by a nonrelativistic nuclear Hamiltonian including both two- and three-nucleon interactions of the Argonne and Urbana type. This model interaction provides very accurate results in the calculation of the binding energy of light nuclei. A suppression of the gap with respect to the pure BCS theory is found, but sensibly weaker than in other works that attempt to include polarization effects in an approximate way.