中文

广义鲁棒性与几何纠缠测度之间的关联

量子物理 2008-01-07 v4

摘要

本文的主要目标是提供纠缠的广义鲁棒性(RgR_g)与几何纠缠测度(EGMEE_{GME})之间的联系。首先,我们证明广义鲁棒性总是高于或等于几何测度。然后我们基于仅ρ\rho的纯度及其与可分态的最大重叠,找到了Rg(ρ)R_g(\rho)的一个更紧的下界。正如我们将看到的,也可以用EGMEE_{GME}来表达这个下界。

关键词

引用

@article{arxiv.quant-ph/0602031,
  title  = {Connecting the generalized robustness and the geometric measure of entanglement},
  author = {Daniel Cavalcanti},
  journal= {arXiv preprint arXiv:quant-ph/0602031},
  year   = {2008}
}

备注

4 pages, 2 figures. Comments welcome. v2: text improved - some completely symmetric states were used to illustrate the results. Comments are always welcome! v3: minor changes. Accepted by Phys. Rev. A. v4: results on symmetric states fixed