Protecting three-dimensional entanglement from correlated amplitude damping channel

• URL: http://arxiv.org/abs/2406.18796v1
• Date: Wed, 26 Jun 2024 23:54:28 GMT
• Title: Protecting three-dimensional entanglement from correlated amplitude damping channel
• Authors: Xing Xiao, Wen-Rui Huang, Tian-Xiang Lu, Yan-Ling Li,
• Abstract summary: This paper introduces two strategies for preserving qutrit-qutrit entanglement in the presence of correlated amplitude damping (CAD) noise. We discuss the impact of correlation effects on entanglement protection and the enhancement of success probability.
• Score: 1.7811840395202345
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum entanglement is a crucial resource in quantum information processing, and protecting it against noise poses a significant challenge. This paper introduces two strategies for preserving qutrit-qutrit entanglement in the presence of correlated amplitude damping (CAD) noise: weak measurement (WM) and environment-assisted measurement (EAM), both combined with quantum measurement reversal (QMR). Two prototypical classes of three-dimensional entangled states are examined. The findings demonstrate that while the WM+QMR method can partially retain entanglement, the EAM+QMR approach is more effective at protecting entanglement as well as enhancing success probabilities, particularly for specific qutrit-qutrit entangled states. Additionally, we thoroughly discuss the impact of correlation effects on entanglement protection and the enhancement of success probability. Our results provide valuable insights into defending high-dimensional entanglement from CAD noise, thus offering practical solutions for the advancement of quantum information technologies.

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