Nonabsorbing high-efficiency counter for itinerant microwave photons

Fan, Bixuan, Johansson, Goran, Combes, Joshua, Milburn, G. J. and Stace, Thomas M. (2014) Nonabsorbing high-efficiency counter for itinerant microwave photons. Physical Review B, 90 3: 035132.1-035132.5. doi:10.1103/PhysRevB.90.035132

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Author Fan, Bixuan
Johansson, Goran
Combes, Joshua
Milburn, G. J.
Stace, Thomas M.
Title Nonabsorbing high-efficiency counter for itinerant microwave photons
Journal name Physical Review B   Check publisher's open access policy
ISSN 1098-0121
1550-235X
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1103/PhysRevB.90.035132
Open Access Status File (Publisher version)
Volume 90
Issue 3
Start page 035132.1
End page 035132.5
Total pages 5
Place of publication College Park, MD United States
Publisher American Physical Society
Collection year 2015
Language eng
Formatted abstract
Detecting an itinerant microwave photon with high efficiency is an outstanding problem in microwave photonics and its applications. We present a scheme to detect an itinerant microwave photon in a transmission line via the nonlinearity provided by a transmon in a driven microwave resonator. With a single transmon we achieve 84% distinguishability between zero and one microwave photons and 90% distinguishability with two cascaded transmons by performing continuous measurements on the output field of the resonator. We also show how the measurement diminishes coherence in the photon number basis thereby illustrating a fundamental principle of quantum measurement: The decoherence rate increases as the detector is made more effective.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2015 Collection
Official Audit
 
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Created: Mon, 04 May 2015, 11:13:19 EST by Ms May Balagaize on behalf of School of Mathematics & Physics