176 citations · 377 across the 14 of their papers we have counts for
10 papers · 1 filter
Dressing the Lorentz atom
Stephen M. Barnett, James D. Cresser, Sarah Croke
We investigate the effects of the electromagnetic vacuum field on a harmonically bound electron. We show that in the electric-dipole approximation the model atom couples only to an…
Diagonalizing the Jaynes-Cummings Hamiltonian and Jaynes-Cummings coherent states
Stephen M. Barnett, Bryan J. Dalton
We determine the form of the unitary transformation that diagonalizes the Jaynes-Cummings Hamiltonian. This leads to operators the action of which has a simple interpretation in te…
On single-photon and classical interference
Stephen M. Barnett
It has often been remarked that single-photon interference experiments, however complicated, seem to behave very much in the same way as those performed in the classical regime, us…
Duality, decay rates and local-field models in macroscopic QED
Niclas Westerberg, Anette Messinger, Stephen M. Barnett
Any treatment of magnetic interactions between atoms, molecules and optical media must start at the form of the interaction energy. This forms the base on which predictions about a…
Difficulty of distinguishing product states locally
Sarah Croke, Stephen M Barnett
Non-locality without entanglement is a rather counter-intuitive phenomenon in which information may be encoded entirely in product (unentangled) states of composite quantum systems…
Will a decaying atom feel a friction force?
Matthias Sonnleitner, Nils Trautmann, Stephen M. Barnett
We show how a simple calculation leads to the surprising result that an excited two-level atom moving through vacuum sees a tiny friction force of first order in v/c. At first sigh…