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Quantum Information Processing

Optimization of realignment criteria and its applications for multipartite quantum states

  • 01-04-2022
Published in:
Authors
Shu-Qian Shen
Lou Chen
An-Wen Hu
Ming Li
Published in
Quantum Information Processing | Issue 4/2022

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Abstract

The article delves into the optimization of realignment criteria for multipartite quantum states, addressing the NP-hard problem of entanglement testing. It introduces advanced criteria such as the Z-criterion and S-criterion, which are more efficient than the PPT criterion. The S-criterion is optimized further, reducing computational costs and enhancing its applicability. The optimized S-criterion is then used to develop a new sequential realignment criterion for multipartite quantum states, demonstrated through a numerical example to outperform existing methods. The article concludes with a call for further study on novel realignment criteria that surpass current standards.
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previous article A fast quantum image encryption algorithm based on affine transform and fractional-order Lorenz-like chaotic dynamical system
next article Tightening monogamy and polygamy relations of unified entanglement in multipartite systems
Title
Optimization of realignment criteria and its applications for multipartite quantum states
Authors
Shu-Qian Shen
Lou Chen
An-Wen Hu
Ming Li
Publication date
01-04-2022
Publisher
Springer US
Published in
Quantum Information Processing / Issue 4/2022
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-022-03463-3
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