Existence of a ground state for the Nelson model with a singular perturbation

Abstract

The existence of a ground state of the Nelson Hamiltonian with a perturbation is considered. The self-adjointness of the Hamiltonian and the existence of a ground state are proven for arbitrary values of coupling constants.

References in corpus (1)

• Infrared problem for the Nelson model on static space-times

Cited by in corpus (1)

• Spin-Boson type models analysed using symmetries