Quantum metrology and estimation of Unruh effect

  title={Quantum metrology and estimation of Unruh effect},
  author={Jieci Wang and Zehua Tian and Jiliang Jing and Heng Fan},
  journal={Scientific Reports},
We study the quantum metrology for a pair of entangled Unruh-Dewitt detectors when one of them is accelerated and coupled to a massless scalar field. Comparing with previous schemes, our model requires only local interaction and avoids the use of cavities in the probe state preparation process. We show that the probe state preparation and the interaction between the accelerated detector and the external field have significant effects on the value of quantum Fisher information, correspondingly… 
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