A practical photon-number-resolving detector in the microwave regime

Bixuan Fan*, Thomas M. Stace, Gerard J. Milburn, Göran Johansson, Christopher Wilson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We present a scheme for microwave photon detection via cross Kerr nonlinearity between two microwave modes mediated by a transmon. Using a cascaded, stochastic master equation method and conditional measurement simulations, we analyze the dependence of the probe phase shift on the control photon number. We demonstrate here that for a microwave pulse with a few photons (below 10), the relationship between the phase shift and the photon number is almost linear. Also, in our scheme, microwave photons to be detected are guided by a 1D transmission line, rather than a cavity, making it suitable for a wide range of frequencies. Finally, the signal-noise-ratio (SNR) and the feasibility of this scheme for experimental realization are discussed. Our scheme might help to build a practical photon detector in the microwave regime.

Original languageEnglish
Title of host publicationInternational Quantum Electronics Conference, IQEC 2011
Number of pages3
StatePublished - 2011
Externally publishedYes
EventInternational Quantum Electronics Conference, IQEC 2011 - Sydney, Australia
Duration: 28 Aug 20111 Sep 2011

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


ConferenceInternational Quantum Electronics Conference, IQEC 2011


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