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Non-Markovian effect on quantum optical metrology under a dissipative environment

  • 发布时间:2020-05-16
  • 点击次数:
  • 发表刊物:Physical Review A
  • 摘要:Quantum metrology utilizes quantum effects to reach higher-precision measurements of physical quantities compared with their classical counterparts. However, the ubiquitous decoherence obstructs its application. Recently, non-Markovian effects are shown to be effective in performing quantum optical metrology under locally dissipative environments [Phys. Rev. Lett. 123, 040402 (2019)]. However, the mechanism is still rather hazy. Here, we uncover the reason why forming a bound state can protect the quantumness against a dissipative ambient via the quantum Fisher information of entangled …
  • 卷号:101
  • 期号:2
  • 页面范围:022115
  • 是否译文:
  • 发表时间:2020

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