77 citations · 153 across the 5 of their papers we have counts for
4 papers · 1 filter
A perturbative approach to J mixing in f-electron systems: Application to actinide dioxides
N. Magnani, P. Santini, G. Amoretti +1
We present a perturbative model for crystal-field calculations, which keeps into account the possible mixing of states labelled by different quantum number J. Analytical J-mixing r…
Integrable lattices and their sub-lattices: from the discrete Moutard (discrete Cauchy-Riemann) 4-point equation to the self-adjoint 5-point scheme
A. Doliwa, P. Grinevich, M. Nieszporski +1
We introduce the sub-lattice approach, a procedure to generate, from a given integrable lattice, a sub-lattice which inherits its integrability features. We consider, as illustrati…
S-mixing and quantum tunneling of the magnetization in molecular nanomagnets
S. Carretta, E. Liviotti, N. Magnani +2
The role of -mixing in the quantum tunneling of the magnetization in nanomagnets has been investigated. We show that the effect on the tunneling frequency is huge and that the d…
The self-adjoint 5-point and 7-point difference operators, the associated Dirichlet problems, Darboux transformations and Lelieuvre formulas
Maciej Nieszporski, Paolo Maria Santini
We present some basic properties of two distinguished discretizations of elliptic operators: the self-adjoint 5-point and 7-point schemes on a two dimensional lattice. We first sho…