Influence of detector motion on discrimination between photon polarizations

  • Authors:

  • Tao Zhou;Jingxin Cui;Ye Cao

  • Affiliations:

  • State Key Laboratory of Low-dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China 100084 and Department of Physics, Sichuan University, Chengdu, China 610064;State Key Laboratory of Low-dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China 100084;State Key Laboratory of Low-dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, China 100084

  • Venue:
  • Quantum Information Processing
  • Year:
  • 2013

Quantified Score

Hi-index 0.00

Visualization

Abstract

We investigate the discrimination between photon polarizations when measured by moving detectors. Both unambiguous and minimum-error discriminations are considered, and we analyze the the optimal successful (correct) probability as a function of the apparatus' velocity. The Holevo bound for polarization discrimination is also discussed and explicit calculation shows that the Holevo bound and the optimal successful (correct) probability for unambiguous (minimum-error) discrimination simultaneously increase or decrease.