Critical quantum metrology in the non-linear quantum rabi model

HIGHLIGHTS

• who: Zu-Jian Ying and collaborators from the School of Physical Science and Technology, Lanzhou University, Lanzhou, China have published the Article: Critical Quantum Metrology in the Non-Linear Quantum Rabi Model, in the Journal: Entropy 2022, 24, 1015. of /2022/
• what: The authors show that the QRM including a nonlinear coupling term exhibits much higher measurement precisions due to its first-order-like phase transition at finite frequency avoiding the detrimental slowing-down effect close to the point of the linear QRM. The authors propose quantum critical sensing protocols based on a generalization of . . .
  

   

  

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