Quantum Noise Locking

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dc.creatorMcKenzie, Kirk
dc.creatorMikhailov, Eugeniy
dc.creatorGoda, Keisuke
dc.creatorLam, Ping Koy
dc.creatorGrosse, Nicolai
dc.creatorGray, Malcolm B.
dc.creatorMavalvala, Nergis
dc.creatorMcClelland, David E.
dc.date2005-05-22
dc.date.accessioned2026-07-07T06:34:08Z
dc.date.available2026-07-07T06:34:08Z
dc.descriptionQuantum optical states which have no coherent amplitude, such as squeezed vacuum states, can not rely on standard readout techniques to generate error signals for control of the quadrature phase. Here we investigate the use of asymmetry in the quadrature variances to obtain a phase-sensitive readout and to lock the phase of a squeezed vacuum state, a technique which we call noise locking (NL). We carry out a theoretical derivation of the NL error signal and the associated stability of the squeezed and anti-squeezed lock points. Experimental data for the NL technique both in the presence and absence of coherent fields are shown, including a comparison with coherent locking techniques. Finally, we use NL to enable a stable readout of the squeezed vacuum state on a homodyne detector.
dc.descriptionAccepted for publication in Journal of Optics:B special issue on Quantum Control
dc.identifierhttps://arxiv.org/abs/quant-ph/0505164
dc.identifierhttp://arxiv.org/abs/quant-ph/0505164
dc.identifierJ. Opt. B: Quantum Semiclass. Opt. 7, S421-S428, (2005).
dc.identifierdoi:10.1088/1464-4266/7/10/032
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99425
dc.subjectQuantum Physics
dc.titleQuantum Noise Locking
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