Concerning the Quantum Interference Effects Associated with Electric and Magnetic Potentials [Letter Submitted to the Editor, Physics Today]

The magnetic version of the effects commonly attributed to Aharonov and Bohm had been published ten years earlier by Ehrenberg and Siday. We compare the two articles, and conclude that their essential contents are identical. We therefore advocate that the magnetic effect be referred to as the Ehrenberg-Siday Effect, and that the term Aharonov-Bohm Effect be reserved for the electrical case.