Abstract
An experimental test of Bell’s inequalities using two-level atoms is proposed. The test is analogous to that proposed by Bohm but, instead of using spins and Stern-Gerlach magnets, two-level atoms and resonant pulses are used. Two atoms excited to a common Rydberg state, but traveling in different directions, are introduced into a microwave cavity. The microwave field resonantly couples two Rydberg states and excites the atoms into a correlated state. The atoms then pass out of the cavity and into separate interaction regions where resonant microwave fields rotate their Bloch vectors through angles directly corresponding to the angles of orientation of the Stern-Gerlach magnets in the spin experiment. State selective ionization is then used to determine whether each atom is in the upper or lower Rydberg state. State selective ionization of Rydberg states has been demonstrated with an efficiency approaching 100% so that tests of Bell’s inequalities which are even more stringent than those using cascade photon polarization may be possible.
© 1986 Optical Society of America
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