Abstract
In this paper we will present the experimental demonstrations of quantum dense coding and quantum cryptography using continuous electromagnetic field with Einstein-Podolsky-Rosen(EPR) correlations. The bright EPR optical beams with the quantum correlations between the amplitude and phase quadratures are produced from a nondegenerate optical parametric amplifier. The direct detection technology of the Bell-state is utilized in the measurements of the quantum correlations and the signals modulated on the quadratures instead of usual homodyne detection. Usability of experimentally accessible squeezed-state entanglements, high efficiencies of bit transmission and information detection, relatively straightforward systems and operating procedures, and security directly provided by quantum correlations make the presented schemes valuable to be applied to the developing quantum information science.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
