, Volume 14, Issue 3, pp 275-284
Date: 01 Jun 2001

Popper's Experiment and Conditional Uncertainty Relations

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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.