Scheme for the generation of an entangled four-photon W-state
Quantum Physics
2009-11-07 v2
Abstract
We present a scheme to produce an entangled four-photon W-state by using linear optical elements. The symmetrical setup of linear optical elements consists of four beam splitters, four polarization beam splitters and four mirrors. A photon EPR-pair and two single photons are required as the input modes. The projection on the W-state can be made by a four-photon coincidence measurement. Further, we show that by means of a horizontally oriented polarizer in front of one detector the W-state of three photons can be generated.
Cite
@article{arxiv.quant-ph/0202090,
title = {Scheme for the generation of an entangled four-photon W-state},
author = {XuBo Zou and K. Pahlke and W. Mathis},
journal= {arXiv preprint arXiv:quant-ph/0202090},
year = {2009}
}
Comments
titile is changed, to appear in PRA