期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.132501
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资金
- ECT* in Trento
- Department of Physics
- University of Trento
- NSF [PHY-0456609, PHY-0757703]
- Division Of Physics
- Direct For Mathematical & Physical Scien [0757703] Funding Source: National Science Foundation
We present a quantum Monte Carlo study of the zero-temperature equation of state of neutron matter and the computation of the (1)S(0) 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.
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