Adaptive quantum state estimation of an entangled qubit state

作者:Lerch Stefan; Stefanov Andre*
来源:Optics Letters, 2014, 39(18): 5399-5402.
DOI:10.1364/OL.39.005399

摘要

The uncertainty on the estimation of unknown parameters of a quantum state can be reduced by using adaptive measurements. Here we perform adaptive quantum-state estimation of the phase in an entangled two-qubits state. We experimentally demonstrate that the adaptive method outperforms nonadaptive methods.

  • 出版日期2014-9-15