High-efficiency quantum-nondemolition single-photon-number-resolving detector

W. J. Munro*, Kae Nemoto, R. G. Beausoleil, T. P. Spiller

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We discuss an approach to the problem of creating a photon-number-resolving detector using the giant Kerr nonlinearities available in electromagnetically induced transparency. Our scheme can implement a photonnumber quantum-nondemolition measurement with high efficiency (∼99%) using fewer than 1600 atoms embedded in a dielectric waveguide.

Original languageEnglish
Article number033819
JournalPhysical Review A
Issue number3
Publication statusPublished - 1 Mar 2005

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