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Quantum nondemolition measurement with a nonclassical meter input and an electro-optic enhancement

Andersen, U; Buchler, Benjamin; Bachor, Hans; Lam, Ping Koy

Description

Optical quantum nondemolition measurements are performed using a beamsplitter with a nonclassical meter input and a electro-optic feedforward loop. The nonclassical meter input is provided by a stable 4.5 dB amplitude squeezed source generated by an optical parametric amplifier. We show that the implementation of a feedforward loop gives a substantial improvement in the signal transfer efficiency. With a 92% reflective beamsplitter we measure a transfer coefficient of Ts+m = 1.81. The quantum...[Show more]

dc.contributor.authorAndersen, U
dc.contributor.authorBuchler, Benjamin
dc.contributor.authorBachor, Hans
dc.contributor.authorLam, Ping Koy
dc.date.accessioned2015-12-13T23:24:21Z
dc.identifier.issn1464-4266
dc.identifier.urihttp://hdl.handle.net/1885/92190
dc.description.abstractOptical quantum nondemolition measurements are performed using a beamsplitter with a nonclassical meter input and a electro-optic feedforward loop. The nonclassical meter input is provided by a stable 4.5 dB amplitude squeezed source generated by an optical parametric amplifier. We show that the implementation of a feedforward loop gives a substantial improvement in the signal transfer efficiency. With a 92% reflective beamsplitter we measure a transfer coefficient of Ts+m = 1.81. The quantum state preparation ability of our system is evaluated using two-dimensional correlation plots. This technique allows the direct visualization of the quantum correlations between the outputs of the QND system.
dc.publisherInstitute of Physics Publishing
dc.sourceJournal of Optics B: Quantum and Semiclassical Optics
dc.subjectKeywords: Electrooptical effects; Optical correlation; Optical parametric oscillators; Visualization; Correlation plots; Quantum nondemolition measurement; Squeezed states; Quantum optics Correlation plots; Quantum nondemolition measurements; Squeezed states
dc.titleQuantum nondemolition measurement with a nonclassical meter input and an electro-optic enhancement
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume4
dc.date.issued2002
local.identifier.absfor020604 - Quantum Optics
local.identifier.ariespublicationMigratedxPub23201
local.type.statusPublished Version
local.contributor.affiliationAndersen, U, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBuchler, Benjamin, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBachor, Hans, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationLam, Ping Koy, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpageS229
local.bibliographicCitation.lastpageS237
local.identifier.doi10.1088/1464-4266/4/3/380
dc.date.updated2015-12-12T09:20:10Z
local.identifier.scopusID2-s2.0-0036611905
CollectionsANU Research Publications

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