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arXiv quant-ph/0511004quant-phmath.CO
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等角线、互无偏基和自旋模型

Equiangular lines, mutually unbiased bases, and spin models

Chris Godsil, Aidan Roy

摘要:

我们利用差集来构造复空间中有趣的直线集。利用(v,k,1)-差集,当k-1是素数幂时,我们得到了C^k中的k^2-k+1等角线.利用参数为(k,n,k,l)的半正则相对差集,我们构造了C^k中n+1个互无偏基的集合.我们展示了如何从交换半域构造这些差集,并且可以通过这种方式获得几个已知的相互无偏基的最大集,解决了关于最大集的单性的猜想。我们还相互无偏基地自旋模型。

英文摘要:

We use difference sets to construct interesting sets of lines in complex space. Using (v,k,1)-difference sets, we obtain k^2-k+1 equiangular lines in C^k when k-1 is a prime power. Using semiregular relative difference sets with parameters (k,n,k,l) we construct sets of n+1 mutually unbiased bases in C^k. We show how to construct these difference sets from commutative semifields and that several known maximal sets of mutually unbiased bases can be obtained in this way, resolving a conjecture about the monomiality of maximal sets. We also relate mutually unbiased bases to spin models.

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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