arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0909.3720quant-ph
收藏

3个或更多MUB的熵不确定性关系的限制

Limits on entropic uncertainty relations for 3 and more MUBs

Andris Ambainis

摘要:

我们考虑熵的不确定性关系的测量结果的量子态在3个或更多的相互无偏基地(MUBs),选择从标准建设的MUBs在素维。我们表明,对于任何选择的3个MUBs和至少一个选择的一个更大的MUBs,最好的可能熵的不确定性关系只能略好于一个平凡的关系由Maassen和Uffink(PRL,1987)为2基地。

英文摘要:

We consider entropic uncertainty relations for outcomes of the measurements of a quantum state in 3 or more mutually unbiased bases (MUBs), chosen from the standard construction of MUBs in prime dimension. We show that, for any choice of 3 MUBs and at least one choice of a larger number of MUBs, the best possible entropic uncertainty relation can be only marginally better than the one that trivially follows from the relation by Maassen and Uffink (PRL, 1987) for 2 bases.

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。

↑