An Elementary Proof of Private Random Number Generation from Bell Inequalities
نویسنده
چکیده
The field of device-independent quantum cryptography has seen enormous success in the past several years, including security proofs for key distribution and random number generation that account for arbitrary imperfections in the devices used. Full security proofs in the field so far are long and technically deep. In this paper we show that the concept of the mirror adversary can be used to simplify device-independent proofs. We give a short proof that any bipartite Bell violation can be used to generate private random numbers. The proof is based on elementary techniques and is self-contained.
منابع مشابه
nt - p h / 01 04 13 3 v 4 3 J ul 2 00 1 Bell ’ s theorem without inequalities and only two distant observers
A proof of Bell's theorem without inequalities is given by suitably extending a proof of the Bell-Kochen-Specker theorem due to Mermin. This proof is generalized to obtain an inequality-free proof of Bell's theorem using an entangled state of 2n qubits (with n odd) shared between two distant observers. In two recent papers[1,2], Cabello gave a proof of Bell's theorem without inequalities by usi...
متن کاملnt - p h / 01 04 13 3 v 3 2 2 Ju n 20 01 Bell ’ s theorem without inequalities and only two distant observers
A proof of Bell's theorem without inequalities is given by suitably extending a proof of the Bell-Kochen-Specker theorem due to Mermin. This proof is generalized to obtain an inequality-free proof of Bell's theorem using an entangled state of 2n qubits (with n odd) shared between two distant observers. In two recent papers[1,2], Cabello gave a proof of Bell's theorem without inequalities by usi...
متن کاملnt - p h / 01 04 13 3 v 2 1 9 Ju n 20 01 Bell ’ s theorem without inequalities and only two distant observers
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