Quantum non-demolition measurements: a new resource for making linear logic scalable
نویسندگان
چکیده
We discuss a new and 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%) which can distinguish 0, 1 and 2 photons. We then show how it is possible to construct a near deterministic CNOT using several single photons sources, linear optics, photon number resolving quantum non-demolition detectors and feed-forward.
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