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

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

2003-10-10

arxiv.org/abs/quant-ph/0310066v3

Phys. Rev. A 71, 033819 (2005)

Physics

Quantum Physics

4 pages, 4 figures. Significantly revised. More discussion on the potential experimental realisation

Scientific paper

10.1103/PhysRevA.71.033819

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 ($\sim$99%)
using less than 1600 atoms embedded in a dielectric waveguide.

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