Missing data outside the detector range: application to continuous variable entanglement verification and quantum cryptography
Quantum Physics
2015-06-15 v1
Abstract
In continuous-variable quantum information processing detectors are necessarily coarse grained and of finite range. We discuss how especially the latter feature is a bug and may easily lead to overoptimistic estimates of entanglement and of security, when missed data outside the detector range are ignored. We show that entropic separability or security criteria are much superior to variance-based criteria for mitigating the negative effects of this bug.
Cite
@article{arxiv.1302.5087,
title = {Missing data outside the detector range: application to continuous variable entanglement verification and quantum cryptography},
author = {Megan R. Ray and S. J. van Enk},
journal= {arXiv preprint arXiv:1302.5087},
year = {2015}
}