Dressed particle
Particle together with excitations from other fields
From Wikipedia, the free encyclopedia
In theoretical physics, a dressed particle or clothed particle is a bare particle together with some excitations of other quantum fields that are inseparable from the bare particle. For example, a dressed electron includes the cloud of virtual electron–positron pairs and photons surrounding the original electron. Another example are polaritons[1] in solid-state physics, dressed quasiparticles of dipolar excitations in a medium with photons.
In radiobiology, a dressed particle is a bare particle together with its Debye sphere that neutralizes its electric charge.
