NOON states from cavity-enhanced down-conversion: high quality and super-resolution
JOSA B, Vol. 27, Issue 6, pp. A25-A29 (2010)
http://dx.doi.org/10.1364/JOSAB.27.000A25
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Abstract
Indistinguishable photons play a key role in quantum optical information technologies. We characterize the output of an ultrabright photon-pair source using multiparticle tomography [ R. B. A. Adamson et al., Phys. Rev. Lett. 98, 043601 (2007) ] and separately identify coherent errors, decoherence, and distinguishability. We demonstrate generation of high-quality indistinguishable pairs and two-photon polarization-entangled states with 99% fidelity. Using such a state we perform a super-resolving angular measurement with 90% visibility.
© 2010 Optical Society of America
OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(230.6080) Optical devices : Sources
(270.0270) Quantum optics : Quantum optics
ToC Category:
Entanglement in Photonic Systems
History
Original Manuscript: November 13, 2009
Revised Manuscript: January 12, 2010
Manuscript Accepted: January 17, 2010
Published: March 9, 2010
Citation
Florian Wolfgramm, Alessandro Cerè, and Morgan W. Mitchell, "NOON states from cavity-enhanced down-conversion: high quality and super-resolution," J. Opt. Soc. Am. B 27, A25-A29 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-6-A25
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