AI Article Synopsis
- Researchers developed a quantum communication channel using photon number correlated twin beams created by a special light source called a nondegenerate optical parametric oscillator.
- The system encodes information by utilizing the differences in the number of photons in the twin beams.
- The study shows that this method has a much lower bit error rate of 0.067 compared to 0.217 when using traditional coherent states for signal transmission.
Article Abstract
We report quantum communications channel using photon number correlated twin beams. The twin beams are generated from a nondegenerate optical parametric oscillator, and the photon number difference is used to encode the signal. The bit error rate of our system will be 0.067 by using the twin beams comparing with 0.217 by using the coherent state as the signal carrier.
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| http://dx.doi.org/10.1364/oe.11.003592 | DOI Listing |
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