Joint quantum-state and measurement tomography with incomplete measurements

  title={Joint quantum-state and measurement tomography with incomplete measurements},
  author={A. Crandall Keith and Charles H. Baldwin and Scott C. Glancy and E. Knill},
  journal={Physical Review A},
  • A. Crandall Keith, Charles H. Baldwin, +1 author E. Knill
  • Published 2018
  • Mathematics, Physics
  • Physical Review A
  • Estimation of quantum states and measurements is crucial for the implementation of quantum information protocols. The standard method for each is quantum tomography. However, quantum tomography suffers from systematic errors caused by imperfect knowledge of the system. We present a procedure to simultaneously characterize quantum states and measurements that mitigates systematic errors by use of a single high-fidelity state preparation and a limited set of high-fidelity unitary operations. Such… CONTINUE READING

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