• B Gnanapragasam

      Articles written in Pramana – Journal of Physics

    • Uncertainty relation for successive measurements

      B Gnanapragasam M D Srinivas

      More Details Abstract Fulltext PDF

      It is noted that the Heisenberg uncertainty relations set a lower bound on the product of variances of two observablesA, B when they are separately measured on two distinct, but identically prepared ensembles. A new uncertainty relation is derived for the product of the variances of the two observablesA, B when they are measured sequentially on a single ensemble of systems. It is shown that the two uncertainty relations differ significantly wheneverA andB are not compatible.

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