Skip to content

A high-efficiency quantum non-demolition single photon number resolving detector

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

quant-pharXiv:quant-ph/0310066

Abstract

We discuss a novel 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 photon number quantum non-demolition measurement with high efficiency (99%) using less than 1600 atoms embedded in a dielectric waveguide.

Create a lesson