One-particle excitations and bound states in non-relativistic current $\times$ current model

Vall, A. N.; Korenblit, S. E.; Leviant, V. M.; Sinitskaya, A. V.

One-particle excitations and bound states in non-relativistic current $\times$ current model

Authors

Description

Vacuum structure, one-particle excitations' spectra and bound states of these excitations are studied in frame of non-relativistic quantum field model with current $\times$ current type interaction. Hidden symmetry of the model is found. It could be broken or exact depending on the coupling constant value. The effect of "piercing" vacuum , generating the appearance of heavy fermionic excitations, could occur in the spontaneously broken phase.
28 pages, one table