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Highly Efficient Entanglement Swapping and Teleportation at Telecom Wavelength

- NICT demonstrates three orders higher count rates -

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March 26, 2015

NICT, in collaboration with the University of Electro-Communications (UEC, President: Dr. Takashi Fukuda), has succeeded in the demonstration of highly efficient entanglement swapping and teleportation at telecom wavelength. We have attained a four-fold coincidence count rate of 108 counts per second, which is three orders higher than the previous experiments at telecom wavelengths. This experiment opens the way to practical implementation of device-independent quantum key distribution and its distance extension by the entanglement swapping as well as multi-photon entangled state generation in telecom band infrastructures with both space and fiber links.

The result was published in Scientific Reports (Nature Publishing Group) on March 20, 2015.

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