We propose an experimental realization of a cryptographic-key-sharing scheme exploiting quantum correlations between pair photons. Our experimental setup consists of an external source of correlated photon pairs which propagate to two widely separated unbalanced Mach-Zehnder interferometers. The probability of detection of photon pairs in any two outputs of the interferometers can be fully modulated by phase plates in either interferometer.
|Number of pages||3|
|Journal||Physical Review Letters|
|Publication status||Published - 31 Aug 1992|