“Spooky Action at a Distance”

  • Dirk Dubbers
  • Hans-Jürgen Stöckmann
Part of the Graduate Texts in Physics book series (GTP)


Since the early days of quantum theory, some disturbing features of quantum physics have lured in the background. Take two particles that have interacted in the past, but meanwhile are so far separated from each other that an interaction is no longer possible. Then the results of measurements on one particle are affected instantaneously by measurements on the other far distant particle. Hidden parameters that might explain this strange entanglement have been ruled out by experiments whose outcomes violate the Bell inequalities, and we conclude that quantum mechanics is a nonlocal theory.


Quantum Theory Physical Reality Hide Variable Spin Component Output Channel 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Dirk Dubbers
    • 1
  • Hans-Jürgen Stöckmann
    • 2
  1. 1.Fak. Physik und Astronomie, Physikalisches InstitutUniversität HeidelbergHeidelbergGermany
  2. 2.Fachbereich Physik Philipps-Universität MarburgMarburgGermany

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