Generic Finite Size Enhancement of Pairing in Mesoscopic Fermi Systems

Abstract

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 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.

Updated version 17/02/03

References in corpus (2)

• Mass Number Dependence of Nuclear Pairing
• Semiclassical evaluation of average nuclear one and two body matrix elements

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• Dineutron correlations in quasi two-dimensional systems in a simplified model and possible relation to neutron-rich nuclei
• Whence the odd-even staggering in nuclear binding?
• Number theory, periodic orbits and superconductivity in nano-cubes
• Cooper pair sizes in superfluid nuclei in a simplified model
• Mesoscopic electron transport and atomic gases, a review of Frank W. J. Hekking's scientific work