Superfluid nuclear matter in BCS theory and beyond

CAO Li-Gang

doi:10.1088/1674-1137/33/S1/011

Chinese Physics C> 2009, Vol. 33> Issue(S1) : 33-36 DOI: 10.1088/1674-1137/33/S1/011

Superfluid nuclear matter in BCS theory and beyond

CAO Li-Gang ^,

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Abstract：
Medium polarization effects are studied for ¹S₀ pairing in nuclear matter within BHF approach. The screening potential is calculated in the RPA limit, suitably renormalized to cure the low density mechanical instability of nuclear matter. The self-energy corrections are consistently included resulting in a strong
depletion of the Fermi surface. The self-energy effects always lead to a quenching of the gap, whereas it is almost completely compensated by the anti-screening effect in nuclear matter.

References

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CAO Li-Gang. Superfluid nuclear matter in BCS theory and beyond[J]. Chinese Physics C, 2009, 33(S1): 33-36. doi: 10.1088/1674-1137/33/S1/011

CAO Li-Gang. Superfluid nuclear matter in BCS theory and beyond[J]. Chinese Physics C, 2009, 33(S1): 33-36. doi: 10.1088/1674-1137/33/S1/011 shu

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Received: 2008-10-22
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Superfluid nuclear matter in BCS theory and beyond

CAO Li-Gang ^,

Corresponding author: CAO Li-Gang,

Received Date: 2008-10-22
Accepted Date: 1900-01-01
Available Online: 2009-01-10

Abstract: Medium polarization effects are studied for ¹S₀ pairing in nuclear matter within BHF approach. The screening potential is calculated in the RPA limit, suitably renormalized to cure the low density mechanical instability of nuclear matter. The self-energy corrections are consistently included resulting in a strong
depletion of the Fermi surface. The self-energy effects always lead to a quenching of the gap, whereas it is almost completely compensated by the anti-screening effect in nuclear matter.