of mediated elements. The origin of mediators is the environment, here interpreted as a collection of excitations. Among … the excitations, the extracted subgroups are elementary environment excitations (EEE) - which have recognised functions in …

The dielectric formulation for the excitations in a bose-condensed liquid is developed from the viewpoint of the … spontaneous breakdown of the phase symmetry. The excitations are hybridized between the sound and the atomic excitations in the …

points by low-lying excitations of a suitable energy functional. It is shown that the LLEE is a linear, unbiased, non …