411 citations · 900 across the 13 of their papers we have counts for
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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★ 69 cited
The Crossover from the Bulk to the Few-Electron limit in Ultrasmall Metallic Grains
J. Dukelsky, G. Sierra
We study the properties of ultrasmall metallic grains with sizes in the range of 20 up to 400 electrons. Using a particle-hole version of the DMRG method we compute condensation en…
cond-mat.supr-con1999★ 114 cited
A Density Matrix Renormalization Group Study of Ultrasmall Superconducting Grains
J. Dukelsky, G. Sierra
We apply the DMRG method to the BCS pairing Hamiltonian which describes ultrasmall superconducting grains. Our version of the DMRG uses the particle (hole) states around the Fermi…