Electromagnetic Field Interaction with Fast-Moving Dipoles

Xiaoyan Yu

Jan-Markus Schwindt

Gianfranco Spavieri

The behavior of a particle possessing a permanent or induced electric dipole moment and interacting with external electromagnetic fields is described. For a special configuration of the fields, a quantum effect is obtained for a moving dipole. The experimental observation of this effect is within reach of atom or molecular interferometry.

Bimalendu Deb, Surajit Sen

We consider a variant of the Jaynes-Cummings model (JCM) which describes the interaction of a moving two-level atom with a single-mode electromagnetic field. The coupling of the moving dipole with the magnetic field which leads to the Roentgen interaction is taken into account. A solution in the dressed state description is presented in the spirit of the JCM.

J. Anandan

Kang-Ho Lee, Young-Wan Kim, Kicheon Kang

We predict a quantum phase shift of a moving electric dipole in the presence of an external magnetic field at a distance. On the basis of the Lorentz-covariant field interaction approach, we show that a phase shift appears in the internal dipole state under the condition that the dipole is moving in the field-free region, which is distinct from the topological He-McKellar-Wilkens phase generated by a direct overlap of the dipole and the field. We discuss the experimental feasibility of detecting this phase with atomic interferometry and argue that detection of this phase will resolve the question of the locality in quantum electromagnetic interaction.