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Generic finite-size enhancement of pairing in mesoscopic Fermi systems
Farine, M.; Hekking, F. W. J.; Schuck, Peter; Viñas Gausí, Xavier
Universitat de Barcelona
The finite-size-dependent enhancement of pairing in mesoscopic Fermi systems is studied under the assumption that the BCS approach is valid and that the two-body force is size independent. Different systems are investigated such as superconducting metallic grains and films as well as atomic nuclei. It is shown that the finite size enhancement of pairing in these systems is in part due to the presence of a surface which accounts quite well for the data of nuclei and explains a good fraction of the enhancement in Al grains.
(c) The American Physical Society, 2003
The American Physical Society

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