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<p>In this paper, we consider the evolution of coherent Bell-like states under a cyclic unitary non-local transformation and compare the geometric phase and linear entropy of these states. We show that in some cases, the geometric phase can indicate entanglement. However, we will provide examples of both separable and entangled states for which, unlike linear entropy, the geometric phase is unable to indicate the entanglement property.</p>

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Linear Entropy and Geometric Phase of Entangled Bell-like Coherent States

  • 期刊论文

  • 发表日期：

    2025年10月30日

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  • S. Rezaei,
  • G. Najarbashi,
  • A. Saber

摘要

In this paper, we consider the evolution of coherent Bell-like states under a cyclic unitary non-local transformation and compare the geometric phase and linear entropy of these states. We show that in some cases, the geometric phase can indicate entanglement. However, we will provide examples of both separable and entangled states for which, unlike linear entropy, the geometric phase is unable to indicate the entanglement property.