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arXiv quant-ph/0008047quant-ph
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一个半定纠缠程序

A semidefinite program for distillable entanglement

Eric M. Rains

摘要:

我们表明,最大保真度获得的p.p.t.精馏过程由半定规划的解给出。这给出了一些关于p.p.t.的新的上下界。可压缩纠缠(以及2-局部可压缩纠缠的新上界)。在对称性的存在下,半定规划大大简化,在各向同性和维尔纳态的情况下成为线性规划。使用这些技术,我们确定p.p.t.非对称Werner态和“最大相关”态的纠缠。最后,我们讨论了半定规划的量子码和1-本地蒸馏的可能应用。

英文摘要:

We show that the maximum fidelity obtained by a p.p.t. distillation protocol is given by the solution to a certain semidefinite program. This gives a number of new lower and upper bounds on p.p.t. distillable entanglement (and thus new upper bounds on 2-locally distillable entanglement). In the presence of symmetry, the semidefinite program simplifies considerably, becoming a linear program in the case of isotropic and Werner states. Using these techniques, we determine the p.p.t. distillable entanglement of asymmetric Werner states and ``maximally correlated'' states. We conclude with a discussion of possible applications of semidefinite programming to quantum codes and 1-local distillation.

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。

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