Eur. Phys. J. A (2004) 20: 277-279
https://doi.org/10.1140/epja/i2003-10148-5

Comment on “Energies of the ground state and first excited 0 ⁺ state in an exactly solvable pairing model” by N. Dinh Dang

¹ Laboratoire de Physique de la Matiére Condensée, Faculté des Sciences de Tunis, Campus Universitaire, 1060, Le Belvédére, Tunisia
² IPN-Lyon, 43 Bd du 11 novembre 1918, F-69622, Villeurbanne Cedex, France

^* e-mail: rabhi@ipnl.in2p3.fr

Abstract

We comment on a recent application of the RPA method and its extensions to the case of the two-level pairing model by N. Dinh Dang (Eur. Phys. J. A 16, 181 (2003)).