Collective particle hole excitation in a deformed ground state
W. D. Heiss, Richard H. Lemmer
It is shown that stable collective particle hole excitations are possible in a generalized Hartree-Fock basis which describes a ground state that has less symmetry than the Hamiltonian. It appears that these collective states remain stable also for strong attractive interaction.[NUCLEAR STRUCTURE Nuclear matter density fluctuations, generalized random phase approximation.]
Physical Review C•Jun 1, 1984•6 citations