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Title

Device-Independent Quantum Key Distribution with Local Bell Test

Authors
Portmann, Christopher
Tomamichel, Marco
Renner, Renato
Published in Physical Review X. 2013, vol. 3, no. 3
Abstract Device-independent quantum key distribution (DIQKD) in its current design requires a violation of a Bell’s inequality between two parties, Alice and Bob, who are connected by a quantum channel. However, in reality, quantum channels are lossy and current DIQKD protocols are thus vulnerable to attacks exploiting the detection loophole of the Bell test. Here, we propose a novel approach to DIQKD that overcomes this limitation. In particular, we propose a protocol where the Bell test is performed entirely on two casually independent devices situated in Alice’s laboratory. As a result, the detection loophole caused by the losses in the channel is avoided.
Keywords Quantum Physics, Quantum Information
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LIM, Ci Wen et al. Device-Independent Quantum Key Distribution with Local Bell Test. In: Physical Review. X, 2013, vol. 3, n° 3. https://archive-ouverte.unige.ch/unige:36619

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Deposited on : 2014-05-13

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