In quantum communication via noisy channels, the error probability scales exponentially with the length of the channel. We present a scheme of a quantum repeater that overcomes this limitation. The central idea is to connect a string of (imperfect) entangled pairs of particles by using a novel nested purification protocol, thereby creating a single distant pair of high fidelity. The scheme tolerates general errors on the percent level.
CITATION STYLE
Briegel, H. J., Cirac, J. I., Dür, W., Giedke, G., & Zoller, P. (1999). Quantum Repeaters for Quantum Communication. In Epistemological and Experimental Perspectives on Quantum Physics (pp. 147–154). Springer Netherlands. https://doi.org/10.1007/978-94-017-1454-9_11
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