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任意水平上互无偏基的平均王问题的解

Solution to the Mean King's problem with mutually unbiased bases for arbitrary levels

Gen Kimura, Hajime Tanaka, Masanao Ozawa

摘要:

本文重新考虑了任意d-水平系统的互无偏基的平均王问题。Hayashi,Horibe和Hashimoto [Phys. Rev. A 71,052331(2005)]将问题与d-1相互正交拉丁方的最大集合的存在性相关,在其限制设置中,仅允许测量投影值测度。然而,我们无法找到解决问题的方法,例如,d=6或d=10。在对比他们的结果,我们表明,国王的问题总是有一个解决方案的任意水平,如果我们也允许积极的运营商价值的措施。在构造解时,我们使用组合设计理论中的正交表。

英文摘要:

The Mean King's problem with mutually unbiased bases is reconsidered for arbitrary d-level systems. Hayashi, Horibe and Hashimoto [Phys. Rev. A 71, 052331 (2005)] related the problem to the existence of a maximal set of d-1 mutually orthogonal Latin squares, in their restricted setting that allows only measurements of projection-valued measures. However, we then cannot find a solution to the problem when e.g., d=6 or d=10. In contrast to their result, we show that the King's problem always has a solution for arbitrary levels if we also allow positive operator-valued measures. In constructing the solution, we use orthogonal arrays in combinatorial design theory.

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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