Journal ArticleDOI
Quantum cryptography based on Bell's theorem.
TLDR
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported, based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment andBells theorem is used to test for eavesdropping.Abstract:
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported. The proposed scheme is based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment and Bells theorem is used to test for eavesdropping. © 1991 The American Physical Society.read more
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Journal ArticleDOI
Experimental quantum key distribution certified by Bell's theorem
D. P. Nadlinger,Peter Drmota,B. C. Nichol,Gabriel Araneda,D. Main,R. Srinivas,D. M. Lucas,C. J. Ballance,Kirill Ivanov,Ernest Y.-Z. Tan,Pavel Sekatski,Rudiger Urbanke,Renato Renner,Nicolas Sangouard,Jean-Daniel Bancal +14 more
TL;DR: In this article , the authors proposed a quantum key distribution protocol with device-independent security. But the secrecy of the key is not guaranteed device-independently, but based on the validity of quantum theory, and certified by measurement statistics observed during the experiment.
Journal ArticleDOI
Multi-party quantum private comparison protocol with $$n$$n-level entangled states
TL;DR: Two multi-party quantum private comparison protocols are proposed in distributed mode and traveling mode, respectively and are proved to be secure against the attacks from both outside attackers and dishonest participants.
Journal ArticleDOI
Hastening, delaying, or averting sudden death of quantum entanglement
TL;DR: In this paper, the finite time end of entanglement between two decohering qubits can be modified by local, unitary actions performed during the decoherence process.
Book ChapterDOI
Unifying classical and quantum key distillation
Matthias Christandl,Artur Ekert,Michał Horodecki,Paweł Horodecki,Jonathan Oppenheim,Renato Renner +5 more
TL;DR: In this paper, the authors studied the key rate in a QKD protocol with respect to the number of key bits that can be extracted per copy of a tripartite state ρABE.
Journal ArticleDOI
Steering a single system sequentially by multiple observers
TL;DR: In this article, the limit of the number of observers (Bobs) who can steer another party's (Alice's) system was found, invoking a scenario where half of an entangled pair is shared between a single Alice in one wing and several Bobs on the other wing, who act sequentially and independently of each other.