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<p>We investigate the dynamics of quantum-state texture (QST) for two uniformly accelerated atoms interacting with a quantized massive scalar field. Our analysis reveals that the system’s evolution arises from a complex competition between local decoherence caused by vacuum fluctuations and a collective, environment-mediated evolution that drives the system to a steady state. This interplay is identified as the physical origin of the notable dip-and-recover phenomenon observed in the QST for certain initial states. The results demonstrate that in the long time limit, the atoms evolve toward a thermal state at the Unruh temperature. We further show how physical parameters regulate this competition: Increasing interatomic separation and field mass can partially protect QST by weakening the collective recovery effect or universally slowing all dissipative processes, respectively. Conversely, higher acceleration enhances the collective thermalization, leading to a faster evolution toward a steady QST value. These insights are significant for understanding and controlling quantum resources in relativistic open quantum systems.</p>

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Quantum-state texture for accelerated atoms interacting with a massive scalar field

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • Zhiming Huang,
  • Lianghui Zhao,
  • Yiyong Ye,
  • Jinyi Wang,
  • Zhenbang Rong,
  • Xiaokui Sheng

摘要

We investigate the dynamics of quantum-state texture (QST) for two uniformly accelerated atoms interacting with a quantized massive scalar field. Our analysis reveals that the system’s evolution arises from a complex competition between local decoherence caused by vacuum fluctuations and a collective, environment-mediated evolution that drives the system to a steady state. This interplay is identified as the physical origin of the notable dip-and-recover phenomenon observed in the QST for certain initial states. The results demonstrate that in the long time limit, the atoms evolve toward a thermal state at the Unruh temperature. We further show how physical parameters regulate this competition: Increasing interatomic separation and field mass can partially protect QST by weakening the collective recovery effect or universally slowing all dissipative processes, respectively. Conversely, higher acceleration enhances the collective thermalization, leading to a faster evolution toward a steady QST value. These insights are significant for understanding and controlling quantum resources in relativistic open quantum systems.