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A new construction of mutually unbiased maximally entangled bases in ℂq⊗ℂq
International Journal of Quantum Information ( IF 1.2 ) Pub Date : 2021-05-06 , DOI: 10.1142/s0219749921500143 Dengming Xu 1 , Feiya Li 2 , Wei Hu 3
International Journal of Quantum Information ( IF 1.2 ) Pub Date : 2021-05-06 , DOI: 10.1142/s0219749921500143 Dengming Xu 1 , Feiya Li 2 , Wei Hu 3
Affiliation
This paper is devoted to constructing mutually unbiased maximally entangled bases (MUMEBs) in ℂ q ⊗ ℂ q , where q is a prime power. We prove that M ( q , q ) ≥ q 2 − q + 1 when q is even, and M ( q , q ) ≥ q 2 − q + 2 when q is odd, where M ( q , q ) is the maximal size of the sets of MUMEBs in ℂ q ⊗ ℂ q . This highly raises the lower bounds of M ( q , q ) given in D. Xu, Quant. Inf. Process. 18 (7) (2019) 213; D. Xu, Quant. Inf. Process. 19 (6) (2020) 175. It should de noted that the method used in the paper is completely different from that in D. Xu, Quant. Inf. Process. 18 (7) (2019) 213; D. Xu, Quant. Inf. Process. 19 (6) (2020) 175.
中文翻译:
ℂq⊗ℂq中相互无偏的最大纠缠碱基的新构造
本文致力于构建相互无偏的最大纠缠基(MUMEB)ℂ q ⊗ ℂ q , 在哪里q 是主力。我们证明米 ( q , q ) ≥ q 2 - q + 1 什么时候q 是偶数,并且米 ( q , q ) ≥ q 2 - q + 2 什么时候q 很奇怪,在哪里米 ( q , q ) 是 MUMEB 集合的最大大小ℂ q ⊗ ℂ q . 这大大提高了米 ( q , q ) 在 D. Xu 中给出,量化。信息。过程。 18 (7) (2019) 213;D.徐,量化。信息。过程。 19 (6) (2020) 175. 需要注意的是,论文中使用的方法与 D. Xu 的方法完全不同,量化。信息。过程。 18 (7) (2019) 213;D.徐,量化。信息。过程。 19 (6) (2020) 175。
更新日期:2021-05-06
中文翻译:
ℂq⊗ℂq中相互无偏的最大纠缠碱基的新构造
本文致力于构建相互无偏的最大纠缠基(MUMEB)