We study the elementary-excitation spectrum of a system of bosons interacting with a spherical-shell potential function from a theory combining the advantages of the method of correlated-basis-function and canonical transformation. By fitting physical parameters with those of liquid helium four into our derived equations, the computed results agree reasonably well with the experimental ones obtained from neutron scattering.
|Number of pages||16|
|Journal||Il Nuovo Cimento B Series 11|
|Publication status||Published - 1 Oct 1986|
- Boson systems
ASJC Scopus subject areas
- Physics and Astronomy(all)