English

More randomness from noisy sources

Quantum Physics 2014-12-12 v3

Abstract

Bell experiments can be used to generate private random numbers. An ideal Bell experiment would involve measuring a state of two maximally entangled qubits, but in practice any state produced is subject to noise. Here we consider how the techniques presented in arXiv:1309.3894 and arXiv:1309.3930, i.e. using an optimized Bell inequality, and taking advantage of the fact that the device provider is not our adversary, can be used to improve the rate of randomness generation in Bell-like tests performed on singlet states subject to either white or dephasing noise.

Keywords

Cite

@article{arxiv.1407.0856,
  title  = {More randomness from noisy sources},
  author = {Jean-Daniel Bancal and Valerio Scarani},
  journal= {arXiv preprint arXiv:1407.0856},
  year   = {2014}
}

Comments

4 pages, 2 figures; to appear in Proceedings of TQC 2014; published version

R2 v1 2026-06-22T04:54:15.167Z