11 research outputs found
Interplay of pairing and multipole interactions in a simple model
The interplay of pairing and other interactions is addressed in this work
using a simple single-j model. We show that enhancements in pairing
correlations observed through studies of the spectra of deformed systems,
moments of inertia, changes in transitional multipole amplitudes, and direct
calculations of the pairing component in the wave function, indicate that even
without explicit matrix elements responsible for pairing, a paired state can
still appear from the kinematic coupling of pairing to deformation and from
other geometrical restrictions that are of extreme importance in mesoscopic
systems. Furthermore, we demonstrate that macroscopic transitions such as
oblate to prolate shape changes can lead to strong dynamic enhancements of
pairing correlations. In this work we emphasize that the pairing condensate has
an important dynamic and kinematic effect on other residual interactions.Comment: 39 pages, 8 figure