Foundations of Physics Letters

, Volume 14, Issue 3, pp 275–284

Popper's Experiment and Conditional Uncertainty Relations

  • A. J. Short

DOI: 10.1023/A:1012238227977

Cite this article as:
Short, A.J. Found Phys Lett (2001) 14: 275. doi:10.1023/A:1012238227977


Application of the uncertainty principle to conditional measurements is investigated and found to be valid for measurements on separated sub-systems. In light of this, an apparent violation of the uncertainty principle obtained by Kim and Shih in their realization of Popper's experiment [1] is explained through analogy with a simple optical system.

Popper's experimentuncertaintyconditional measurementquantum mechanicsentanglement

Copyright information

© Plenum Publishing Corporation 2001

Authors and Affiliations

  • A. J. Short
    • 1
  1. 1.Centre for Quantum Computation, Clarendon LaboratoryUniversity of OxfordUnited Kingdom