A semiconductor source of triggered entangled photon pairs?
量子物理
2007-05-23 v2
摘要
The realisation of a triggered entangled photon source will be of great importance in quantum information, including for quantum key distribution and quantum computation. We show here that: 1) the source reported in ``A semiconductor source of triggered entangled photon pairs''[1. Stevenson et al., Nature 439, 179 (2006)]} is not entangled; 2) the entanglement indicators used in Ref. 1 are inappropriate, relying on assumptions invalidated by their own data; and 3) even after simulating subtraction of the significant quantity of background noise, their source has insignificant entanglement.
引用
@article{arxiv.quant-ph/0602018,
title = {A semiconductor source of triggered entangled photon pairs?},
author = {A. Gilchrist and K. J. Resch and A. G. White},
journal= {arXiv preprint arXiv:quant-ph/0602018},
year = {2007}
}
备注
5 pages in pre-print format, 1 table