Quantum nondemolition measurements of photon number by atomic beam deflection
- 23 September 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (13) , 1716-1719
- https://doi.org/10.1103/physrevlett.67.1716
Abstract
We present a new quantum nondemolition measurement scheme in which a measure of the photon statistics of a cavity field can be achieved by monitoring the deflection of atoms interacting with the field. Repeated measurements result in the collapse of the photon distribution in the field to a number state. Quantum jumps in the photon number are observed when the cavity field is coupled to an external reservoir.Keywords
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