2 papers
math-ph2026
Equivalent potential-energy functions
Francisco M. Fernández
Many researchers have proposed their own potential-energy functions for the study of diatomic molecules, some of which have been proved to be equivalent. In this paper we suggest t…
quant-ph2022
Comment on: "On the characteristic polynomial of an effective Hamiltonian"
Francisco M. Fernández
We show that a method proposed recently, based on the characteristic polynomial of an effective Hamiltonian, had been developed several years earlier by other authors in a clearer…