Journal
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Volume 60, Issue 7, Pages 2653-2661Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-021-04840-x
Keywords
Special entangled basis with Schmidt number 2 (SEB2); Entangled state; Mutually unbiased bases
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Funding
- National Natural Science Foundation of China [11761073, 11901163]
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The research focuses on mutually unbiased bases formed by special entangled basis with fixed Schmidt number 2, establishing a systematic way of construction and proposing a general approach from different contexts. Detailed examples in various environments are provided, and limitations from previous studies are successfully eliminated.
We study mutually unbiased bases formed by special entangled basis with fixed Schmidt number 2 (MUSEB2s) in C-3 circle times C-4p(p is an element of Z(+)). Through analyzing the conditions MUSEB2s satisfy, a systematic way of the concrete construction of MUSEB2s in C-3 circle times C-4p is established. A general approach to constructing MUSMEB2s in C-3 circle times C-4p(p is an element of Z(+)) from MUSMEB2s in C-3 circle times C-4 is also presented. Detailed examples in C-3 circle times C-4, C-3 circle times C-8 and C-3 circle times C-12 are given. Especially, by choosing special entangled basis with fixed Schmidt number 2 (SEB2) from [J. Phys. A. Math. Theor. 48245301(2015)], the limitation of 3 inverted iota p in [Quantum Inf. Process. 17:58(2018)] is successfully deleted.
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