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Quantum correlation of entangled spin-coherent states in non-inertial frames

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Abstract

This study uses spin coherent states to generate two- and three-partite entangled states. We then investigate the entanglement and correlation of these systems when one component undergoes uniform acceleration. The entanglement of bipartite and tripartite states is quantified using concurrence and 3-tangle, respectively, while the mutual entropy is used to evaluate the system correlation. The findings indicate that the entanglement and correlation decrease as a function of the acceleration parameter. Furthermore, a comparison of entanglement and mutual entropy reveals that the correlation of the bipartite system is predominantly manifested as entanglement. However, the quantum correlation of the tripartite system is of an entanglement type within a certain range of the coherence parameter, but outside this range, it transforms into a classical type.

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Authors and Affiliations

  1. Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran

    Reza Hamzehhofi, Mehrzad Ashrafpour & Davood Afshar

  2. Center for Research on Laser and Plasma, Shahid Chamran University of Ahvaz, Ahvaz, Iran

    Mehrzad Ashrafpour & Davood Afshar

Corresponding author

Correspondence to Mehrzad Ashrafpour.

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Hamzehhofi, R., Ashrafpour, M. & Afshar, D. Quantum correlation of entangled spin-coherent states in non-inertial frames. Pramana – J Phys 99, 98 (2025). https://doi.org/10.1007/s12043-025-02940-5

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  • Revised   
  • Accepted 
  • Published 
  • DOI  https://doi.org/10.1007/s12043-025-02940-5

Keywords

  • Quantum correlation
  • entanglement
  • spin-coherent states

PACS Nos.

  • 03.65.Ud
  • 03.65.Yz

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