Effective field theory for dilute fermions with pairing |
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Authors: | RJ Furnstahl SJ Puglia |
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Institution: | a Department of Physics, The Ohio State University, Columbus, OH 43210, USA b Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), Universität Bonn, Nußallee 14-16, D-53115 Bonn, Germany c SBIG (UK) PLC, Berkeley Square House, London W1J 6BR, UK |
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Abstract: | Effective field theory (EFT) methods for a uniform system of fermions with short-range, natural interactions are extended to include pairing correlations, as part of a program to develop a systematic Kohn-Sham density functional theory (DFT) for medium and heavy nuclei. An effective action formalism for local composite operators leads to a free-energy functional that includes pairing by applying an inversion method order by order in the EFT expansion. A consistent renormalization scheme is demonstrated for the uniform system through next-to-leading order, which includes induced-interaction corrections to pairing. |
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Keywords: | 24 10 Cn 71 15 Mb 21 60 -n 31 15 -p |
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