Physical Review Letters
The authors have studied the deflection of ground-state sodium atoms passing through a micron-sized parallel-plate cavity by measuring the intensity of a sodium atomic beam transmitted through the cavity as a function of cavity plate separation. This experiment provides clear evidence for the existence of the Casimir-Polder force, which is due to modification of the ground-state Lamb shift in the confined space of a cavity. The results confirm the magnitude of the force and the distance dependence predicted by quantum electrodynamics.
Original Publication Citation
Sukenik, C.I., Boshier, M.G., Cho, S., Sandoghdar, V., & Hinds, E.A. (1993). Measurement of the Casimir-Polder force. Physical Review Letters, 70(5), 560-563. doi: 10.1103/PhysRevLett.70.560
Sukenik, C. I.; Boshier, M. G.; Cho, S.; Sandoghdar, V.; and Hinds, E. A., "Measurement of the Casimir-Polder Force" (1993). Physics Faculty Publications. 7.