Constructing mutually unbiased bases from unextendible maximally entangled bases
Hui Zhao, Lin Zhang, Shao-Ming Fei, and Naihuan Jing
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Submission date: 21. Aug. 2019
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We study mutually unbiased bases (MUBs) in which all the bases are unextendible maximally entangled ones. We ﬁrst present a necessary and suﬃcient condition of constructing a pair of MUBs in C2 ⊗ C4. Based on this condition, an analytical necessary condition for constructing MUBs is given. Moreover we illustrate our approach by some detailed examples in C2 ⊗ C4. The results are generalized to C2 ⊗ Cd (d ≥ 3) and a concrete example in C2 ⊗ C8 is given.