Measurements vs. Interactions: Tracks in a Wilson Cloud Chamber

  • Gianfausto Dell’AntonioEmail author
Part of the Operator Theory: Advances and Applications book series (OT, volume 252)


We give the interpretation, within Quantum Mechanics, of the following experimental fact: when a decay produces an alpha wave in a Wilson cloud chamber filled with a supersaturated vapor, only one track of condensation points is seen (rectilinear if a non-magnetic field is present). The track is produced in a random direction.

We regard this as an example of the difference, in Quantum Mechanics, between interaction and measurement and as an instance of the measurement problem.


Measurement interaction tracks 


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.SISSA TriesteTriesteItaly

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