Quantum cryptography using continuous variable Einstein-Podolsky-Rosen correlations and quadrature phase amplitude measurements
M. D. Reid · Swinburne figshare (Swinburne University of Technology) · 2000
A study is carried out to demonstrate how Einstein, Podolsky and Rosen (EPR) correlated beams can be used for quantum cryptography. The high detection efficiencies give a very much reduced overall loss factor, which make it possible to transmit directly and efficiently a predetermined message, later checking providing a means to check security.