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Effect of polarization on superfluidity in low density neutron matterThe singlet-state quasi-particle interaction in neutron matter is examined on the basis of results of a detailed evaluation of the Landau Fermi-liquid parameters for pure neutron effects, including polarization effects. This means that the interaction induced by exchange of density and spin-density excitations is taken into account. It is shown that polarization actually works to suppress the pairing matrix elements, owing to the spin dependence of the quasi-particle interaction and, ultimately, the balance of attraction, repulsion, and spin dependence in the fundamental two-neutron interaction. Since the isotropic energy gap and the condensation energy in low-density neutron-star matter are extremely sensitive functions of the pairing matrix elements, they will also be suppressed by the polarizability of the neutron medium.
Document ID
19760049599
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Clark, J. W.
(McDonnell Center for the Space Sciences; Washington University St. Louis, Mo., United States)
Kallman, C.-G.
(Abo Akademi Institutionen for Fysik, Abo, Finland)
Yang, C.-H.
(Southern Univ. Baton Rouge, LA, United States)
Chakkalakal, D. A.
(Southern University Baton Rouge, La., United States)
Date Acquired
August 8, 2013
Publication Date
April 12, 1976
Publication Information
Publication: Physics Letters
Volume: 61B
Subject Category
Astrophysics
Accession Number
76A32565
Funding Number(s)
CONTRACT_GRANT: NGR-19-005-006
CONTRACT_GRANT: JPL-953549
CONTRACT_GRANT: NSF DMR-72-03166A03
Distribution Limits
Public
Copyright
Other

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