Quantum separability criteria based on realignment moments
- URL: http://arxiv.org/abs/2209.05066v1
- Date: Mon, 12 Sep 2022 07:52:07 GMT
- Title: Quantum separability criteria based on realignment moments
- Authors: Tinggui Zhang, Naihuan Jing and Shao-Ming Fei
- Abstract summary: We propose entanglement detection criteria in terms of realignment moments.
We show by detailed example that the realignment moments can also be used to identify quantum entanglement.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum entanglement is the core resource in quantum information processing
and quantum computing. It is an significant challenge to effectively
characterize the entanglement of quantum states. Recently, elegant separability
criterion is presented in [Phys. Rev. Lett. 125, 200501 (2020)] by Elben et al.
based on the first three partially transposed (PT) moments of density matrices.
Then in [Phys. Rev. Lett. 127, 060504 (2021)] Yu \emph{et al.} proposed two
general powerful criteria based on the PT moments. In this paper, based on the
realignment operations of matrices we propose entanglement detection criteria
in terms of such realignment moments. We show by detailed example that the
realignment moments can also be used to identify quantum entanglement.
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