Optimally controlled quantum discrimination and estimation

  title={Optimally controlled quantum discrimination and estimation},
  author={Daniel Basilewitsch and Haidong Yuan and Christiane P. Koch},
  journal={arXiv: Quantum Physics},
Quantum discrimination and estimation are pivotal for many quantum technologies, and their performance depends on the optimal choice of probe state and measurement. Here we show that their performance can be further improved by suitably tailoring the pulses that make up the interferometer. Developing an optimal control framework and applying it to the discrimination and estimation of a magnetic field in the presence of noise, we find an increase in the overall achievable state… 

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