Archiviertes Physik-Kolloquium:

09. Jul. 2015, 16:15 Uhr, Gebäude NW1, Raum H3

New uncertainty relations for the error-disturbance tradeoff, with some remarks on scientific publication culture

Prof. Dr. Reinhard Werner, Universität Hannover

The error-disturbance tradeoff exemplified by the microscope experiment in Heisenberg’s classic uncertainty paper from 1927 is not contained in the textbook version of uncertainty relations. Indeed, these relations describe only the constraint on the variances of two separate experiments. No particle in these measurements suffers both a position and a momentum measurement, which is clearly necessary for discussing error and disturbance. I will describe how to set up provable quantitative relations expressing this tradeoff, and give some basic examples. At the request of the organizers I will also outline some counterproductive features of the current culture of scientific publication in physics. My basic thesis is that some structures we have inherited from the era of paper journals are undermining the idea of quality science, and are not adequate for managing a rapidly growing body of knowledge. Particularly damaging ideas are the preference for High Impact Journals, and the uncritical use of citation statistics.