Continuous measurement of photon number with double registration of counts - art. no. 033806

摘要

The theory of continuous measurement has been applied to photon counting by means of an atomic beam crossing a cavity and impinging on a field-ionization detector behind. An interesting feature of the proposed measurement consists in an incoherent frequency down-conversion coupling of the measured mode to another mode, which, on the assumption that the latter is initially in the vacuum state, results in a second registration of the counts. [References: 26]