Quantum Nondemolition Detection of a Propagating Microwave Photon

Sathyamoorthy, Sankar R., Tornberg, L., Kockum, Anton F., Baragiola, Ben Q., Combes, Joshua, Wilson, C. M., Stace, Thomas M. and Johansson, G. (2014) Quantum Nondemolition Detection of a Propagating Microwave Photon. Physical Review Letters, 112 9: 093601-1-093601-5. doi:10.1103/PhysRevLett.112.093601

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Author Sathyamoorthy, Sankar R.
Tornberg, L.
Kockum, Anton F.
Baragiola, Ben Q.
Combes, Joshua
Wilson, C. M.
Stace, Thomas M.
Johansson, G.
Title Quantum Nondemolition Detection of a Propagating Microwave Photon
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2014-03
Year available 2014
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.112.093601
Open Access Status File (Publisher version)
Volume 112
Issue 9
Start page 093601-1
End page 093601-5
Total pages 5
Place of publication College Park, United States
Publisher American Physical Society
Collection year 2015
Language eng
Formatted abstract
The ability to nondestructively detect the presence of a single, traveling photon has been a long-standing goal in optics, with applications in quantum information and measurement. Realizing such a detector is complicated by the fact that photon-photon interactions are typically very weak. At microwave frequencies, very strong effective photon-photon interactions in a waveguide have recently been demonstrated. Here we show how this type of interaction can be used to realize a quantum nondemolition measurement of a single propagating microwave photon. The scheme we propose uses a chain of solid-state three-level systems (transmons) cascaded through circulators which suppress photon backscattering. Our theoretical analysis shows that microwave-photon detection with fidelity around 90% can be realized with existing technologies.
Keyword Field
Circuit
Number
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
 
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