Phys. Rev. Lett. 71, 2360–2363 (1993)Quantum switches and nonlocal microwave fieldsReceived 2 July 1993; published in the issue dated 11 October 1993 A scheme to realize an optical switch with quantum coherence between its ‘‘open’’ and ‘‘closed’’ states is presented. It involves a single atom in a superposition of circular Rydberg states crossing a high Q cavity. A combination of switches could be used to prepare a quantum superposition of coherent microwave field states located simultaneously in two cavities. Such nonclassical states and their decoherence due to cavity dissipation could be studied by performing atom correlation experiments. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.2360
DOI:
10.1103/PhysRevLett.71.2360
PACS:
03.65.Bz, 32.80.-t, 42.50.Wm
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