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arXiv 0905.1428quant-ph
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SIC-POVM和MUB:素数维的几何关系

SIC-POVMs and MUBs: Geometrical Relationships in Prime Dimension

D. M. Appleby

摘要:

本文研究了素维上的Weyl-Heisenberg协变SIC-POVMs(对称信息完备正算子值测度)和MUB(互无偏基)全集.当表示为广义布洛赫空间中的向量时,SIC-POVM形成d^2-1维正则单形(d是希尔伯特空间维度)。相比之下,广义Bloch向量表示一个完整的MUB集形成d+1个相互正交的d-1维正则单形。在本文中,我们表明,在Weyl-Heisenberg的情况下,有一些简单的几何关系之间的单一SIC-POVM单纯形和d+1 MUB单纯形。我们接着给出几何解释的最小不确定性状态介绍的伍特斯和萨斯曼,并由Appleby,党和福克斯,和信用条件的Appleby,党和福克斯。

英文摘要:

The paper concerns Weyl-Heisenberg covariant SIC-POVMs (symmetric informationally complete positive operator valued measures) and full sets of MUBs (mutually unbiased bases) in prime dimension. When represented as vectors in generalized Bloch space a SIC-POVM forms a d^2-1 dimensional regular simplex (d being the Hilbert space dimension). By contrast, the generalized Bloch vectors representing a full set of MUBs form d+1 mutually orthogonal d-1 dimensional regular simplices. In this paper we show that, in the Weyl-Heisenberg case, there are some simple geometrical relationships between the single SIC-POVM simplex and the d+1 MUB simplices. We go on to give geometrical interpretations of the minimum uncertainty states introduced by Wootters and Sussman, and by Appleby, Dang and Fuchs, and of the fiduciality condition given by Appleby, Dang and Fuchs.

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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