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APS » Journals » Phys. Rev. Lett. » Volume 54 » Issue 22
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Phys. Rev. Lett. 54, 2395–2398 (1985)

Violation of Causality in Relativistic Quantum Theory?

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Gerhard C. Hegerfeldt*,†
Institut für Theoretische Physik, Universität Göttingen, Göttingen, West Germany, and A. P. Sloan Laboratory for Mathematics and Physics, California Institute of Technology, Pasadena, California 91125

Received 12 April 1985; published in the issue dated 3 June 1985

We show that states of systems which, in a very general sense, are approximately localized at time t=0 in a finite region, with exponentially bounded tails outside, violate Einstein causality at later times. Implications are discussed.

© 1985 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.54.2395
DOI:
10.1103/PhysRevLett.54.2395
PACS:
03.65.Bz

*Permanent address.

†Address until fall 1985.

 
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