Squeezing more from a quantum nondemolition measurement
- 13 December 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 65 (1), 011803
- https://doi.org/10.1103/physreva.65.011803
Abstract
We use a stable, 5 dB, amplitude squeezed source for a quantum nondemolition (QND) experiment. The performance of our QND system is enhanced by an electro-optic feedforward loop which improves the signal transfer efficiency. At best, we measure a total signal transfer of 1.81 and conditional variance of 0.55.Keywords
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