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Deterministic quantum teleportation through six-kilometer fiber-channel (Conference Presentation)
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Paper Abstract

Quantum teleportation means to transfer an unknown quantum state from one station to another over certain distance with the help of nonlocal Einstein-Podolsky-Rosen entangled state shared by sender and receiver. Here, we experimentally realize deterministic quantum teleportation of an optical coherent state through 6.0 kilometer fiber fiber-channel. The fidelity of 0.62±0.03 is achieved for the retrieved quantum state, which breaks through the classical limit of 1/2. A fidelity of 0.69±0.03 breaking through the no-cloning limit of 2/3 has also been achieved when the transmission distance is 2.0 kilometers. Our work provides a feasible scheme to implement deterministic quantum teleportation in communication networks.

Paper Details

Date Published: 5 March 2019
Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 109342V (5 March 2019); doi: 10.1117/12.2515421
Show Author Affiliations
Xiaojun Jia, Shanxi Univ. (China)
Yaohui Zheng, Shanxi Univ. (China)

Published in SPIE Proceedings Vol. 10934:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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