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The superposition invariance of unitary operators and maximally entangled state
Author(s): Xin-wei Zha; Ning Miao; Xiao-yuan Yu
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Paper Abstract

In this paper, we study unitary operators and the superposition of unitary operators. We calculate the the superposition of unitary operators and find that some unitary operators superposition is also unitary operator. Furthermore, via this property, we discuss the set of orthogonal maximally entangled states. For 2,3,4,5-qubit, we introduce the complete sets of orthogonal maximally entangled states. We find that orthogonal basis of maximally entangled states can be divided into k subspaces. It is shown that some entanglement properties of superposed state in every subspace are invariant.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11339, AOPC 2019: Quantum Information Technology, 1133902 (18 December 2019); doi: 10.1117/12.2538451
Show Author Affiliations
Xin-wei Zha, Xi'an Univ. of Posts & Telecommunications (China)
Ning Miao, Xi'an Univ. of Posts & Telecommunications (China)
Xiao-yuan Yu, Xi'an Univ. of Posts & Telecommunications (China)


Published in SPIE Proceedings Vol. 11339:
AOPC 2019: Quantum Information Technology
Jianyu Wang; Chaoyang Lu; Sven Höfling, Editor(s)

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