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Eigenstate Estimation for the Bardeen-Cooper-Schrieffer (BCS) Hamiltonian
Eigenstate Estimation Bardeen-Cooper-Schrieffer (BCS) Hamiltonian
2011/1/10
We show how multi-level BCS Hamiltonians of finite systems in the strong pairing interaction
regime can be accurately approximated using multi-dimensional shifted harmonic oscillator Hamil-tonians.
L'utilisation des splines bidimensionnels pour l'estimation de lois de maintien en arrêt de travail
Disability Kaplan-Meier splines estimation
2010/4/27
The aim of this paper is to propose an operational two-dimensional parametric adjustment for laws of maintenance in disability. The method suggested rests on splines in dimension 2; it is applied to a...