Quantum-Nondemolition Measurements with Coherent Soliton Probes
- 21 November 1994
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (21), 2837-2840
- https://doi.org/10.1103/physrevlett.73.2837
Abstract
We obtain bounds on the signal-to-noise ratio for quantum-nondemolition measurement of photon number, using soliton collisions. A combined phase and amplitude quadrature measurement strategy can give almost noise-free results, provided equal amplitude solitons with low relative velocities are used.Keywords
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