Space-to-space quantum interferometric communications

F.J. Duarte

F.J. Duarte

Joseph C. Chapman, Trent Graham, Paul G. Kwiat

F.J. Duarte, T S Taylor

F. J. Duarte

Free-space secure communications via interferometric characters generated by quantum N -slit interferometers, and ensembles of indistinguishable photons, is discussed quantitatively in detail. The highly sensitive ability of this interferometric methodology to detect attempts of third-party intrusion is highlighted.

F.J. Duarte

The history of the probability amplitude equation |ψ〉=(|x,y〉−|y,x〉) applicable to quanta pairs, propagating in different directions with entangled polarizations, is reviewed and traced back to the 1947–1949 period. The interferometric Dirac foundations common to |ψ〉=(|x,y〉−|y,x〉) and the generalized N-slit interferometric equation, for indistinguishable quanta, are also described. The results from a series of experiments on N-slit laser interferometers, with intra interferometric propagation paths up to 527 m, are reviewed. Particular attention is given to explain the generation of interferometric characters, for secure space-to-space communications, which immediately collapse on attempts of interception. The design of a low divergence N-slit laser interferometer for low Earth orbit-low Earth orbit (LEO-LEO), and LEO-geostationary Earth orbit (LEO-GEO), secure interferometric communications is described and a weight assessment is provided.