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Title: Device-independent quantum key distribution with local bell test
Authors: Lim C.C.W. 
Portmann C.
Tomamichel M. 
Renner R.
Gisin N.
Keywords: Bell test
Bell's inequality
Quantum channel
Quantum cryptography
Quantum entanglement
Issue Date: 2014
Citation: Lim C.C.W., Portmann C., Tomamichel M., Renner R., Gisin N. (2014). Device-independent quantum key distribution with local bell test. Physical Review X 3 (3) : 31006. ScholarBank@NUS Repository.
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.
Source Title: Physical Review X
ISSN: 2160-3308
DOI: 10.1103/PhysRevX.3.031006
Appears in Collections:Elements
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