Abstract
It is demonstrated analytically for a two-level model with pairing force that Marumori's method converges rapidly if one uses the idea of pairing vibrations. The approximation of Sørensen and the broken-pair approximation are compared with Marumori's boson expansion.
Original language | English |
---|---|
Pages (from-to) | 588-590 |
Number of pages | 3 |
Journal | Physics Letters B |
Volume | 30 |
Issue number | 9 |
DOIs | |
State | Published - 22 Dec 1969 |