arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/0202090quant-ph
收藏

一种制备纠缠四光子W态的方案

Scheme for the generation of an entangled four-photon W-state

XuBo Zou, K. Pahlke, W. Mathis

摘要:

提出了一种利用线性光学元件制备纠缠四光子W态的方案。线性光学元件的对称结构由四个分束器、四个偏振分束器和四个反射镜组成。需要一个光子EPR对和两个单光子作为输入模式。在W态上的投影可以通过四光子符合测量来进行。此外,我们表明,通过一个水平取向的偏振器在一个检测器的前面的W-状态的三个光子可以产生。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑