arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0811.2047quant-ph
收藏

利用凸顶扩展负性实现多体高维量子系统的纠缠单偶

Entanglement monogamy of multipartite higher-dimensional quantum systems using convex-roof extended negativity

Jeong San Kim, Anirban Das, Barry C. Sanders

摘要:

我们提出用凸顶扩展负性(CREN)代替并发性来研究纠缠的一夫一妻制(MoE)。我们表明,所有已证明的MoE的关系,使用并发可以改写CREN。此外,我们表明,高维(量子)扩展的MoE的CREN不证伪的任何反例用于证伪量子扩展的MoE的并发性。我们进一步测试的CREN版本的MoE qudits通过考虑完全或部分相干的混合物qudit W类状态与真空,并表明,CREN版本的MoE qudits是满意的,在这种情况下。因此,CREN版本的Qudits的MoE是一个强猜想,没有明显的反例。

英文摘要:

We propose replacing concurrence by convex-roof extended negativity (CREN) for studying monogamy of entanglement (MoE). We show that all proven MoE relations using concurrence can be rephrased in terms of CREN. Furthermore we show that higher-dimensional (qudit) extensions of MoE in terms of CREN are not disproven by any of the counterexamples used to disprove qudit extensions of MoE in terms of concurrence. We further test the CREN version of MoE for qudits by considering fully or partially coherent mixtures of a qudit W-class state with the vacuum and show that the CREN version of MoE for qudits is satisfied in this case as well. The CREN version of MoE for qudits is thus a strong conjecture with no obvious counterexamples.

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。

↑