Experimental realization of quantum cryptosystem over 87 km

Toshio Hasegawa,Tsuyoshi Nishioka,Hirokazu Ishizuka,Jun’ichi Abe,Mitsuru Matsui,Shigeki Takeuchi

Experimental realization of quantum cryptosystem over 87 km

2003

Toshio Hasegawa
Tsuyoshi Nishioka
Hirokazu Ishizuka
Jun’ichi Abe
Mitsuru Matsui
Shigeki Takeuchi

We have successfully implemented telecom-wavelength quantum cryptosystem over 87.5 km (world's longest) including error correction and privacy amplification. We confirmed that key distribution was performed at a rate of 7.2 bps with a 7.6% QBER.

Keywords:

Error detection and correction
Quantum error correction
Key distribution
Quantum cryptography
Quantum optics
Optics
Cryptosystem
Quantum mechanics
Quantum network
Physics
Quantum
Quantum channel

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