On Bell measurements for teleportation
Quantum Physics
2016-08-15 v2
Abstract
In this paper we investigate the possibility to make complete Bell measurements on a product Hilbert space of two two-level bosonic systems. We restrict our tools to linear elements, like beam splitters and phase shifters, delay lines and electronically switched linear elements, photo-detectors, and auxiliary bosons. As a result we show that with these tools a never failing Bell measurement is impossible.
Cite
@article{arxiv.quant-ph/9809063,
title = {On Bell measurements for teleportation},
author = {N. Lütkenhaus and J. Calsamiglia and K-A. Suominen},
journal= {arXiv preprint arXiv:quant-ph/9809063},
year = {2016}
}
Comments
7 pages, 3 figures. Final version to appear in Phys.Rev. A