120 citations · 406 across the 6 of their papers we have counts for
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cond-mat.str-el1999
Superconductivity in Ultrasmall Grains: Introduction to Richardson's Exact Solution
Jan von Delft, Fabian Braun
Studies of pairing correlations in ultrasmall metallic grains have commonly been based on a simple reduced BCS-model describing the scattering of pairs of electrons between discret…
cond-mat.supr-con1999★ 90 cited
Exact Study of the Effect of Level Statistics in Ultrasmall Superconducting Grains
G. Sierra, J. Dukelsky, G. G. Dussel +2
The reduced BCS model that is commonly used for ultrasmall superconducting grains has an exact solution worked out long ago by Richardson in the context of nuclear physics. We use…
cond-mat.supr-con1999
Fixed-N Superconductivity: The Exact Crossover from the Bulk to the Few-Electron Limit
Fabian Braun, Jan von Delft
We use two truly canonical approaches to describe superconductivity in ultrasmall metallic grains: (a) a variational fixed-N projected BCS-like theory and (b) an exact solution of…