Quantum-nondemolition measurement of the photon number of an optical soliton
| Autor: | Stephen R. Friberg, Yoshihisa Yamamoto, Susume Machida |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Physics
Quantum optics Quantum nondemolition measurement Photon Optical fiber Phase (waves) Physics::Optics General Physics and Astronomy Noise (electronics) law.invention Nonlinear Sciences::Exactly Solvable and Integrable Systems law Quantum mechanics Soliton Nonlinear Sciences::Pattern Formation and Solitons Quantum |
| Zdroj: | Physical Review Letters. 69:3165-3168 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.69.3165 |
| Popis: | We report the quantum-nondemolition measurement of the photon number of an optical soliton. Taking advantage of the conservation properties of quantum solitons, we were able to read out the photon number of a ``signal'' soliton via the phase of a ``probe'' soliton after a soliton collision in a single-mode low-loss optical fiber. Subsequent noise measurements showed the photon number fluctuations of the signal soliton at the shot-noise limit to be correlated to the phase fluctuations of the probe soliton, signifying a backaction-evading measurement of the photon number. |
| Databáze: | OpenAIRE |
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