Violate Superluminal Signals Causality?

  • G. Nimtz

Abstract

The paper elucidates the physical basis of experimental results on superluminal signal velocity. It will be made plausible that superluminal signals do not violate the principle of causality but they can shorten the vacuum time span between cause and effect. The causal behavior is based on the property that a physical signal has a finite duration as a result of its frequency band limitation.

Keywords

Superluminal signal velocity special relativity 03.30.+p 42.25Bs 73.40.GK 42.50.-p 

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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • G. Nimtz
    • 1
  1. 1.II. Physikalisches Institutder Universität zu KölnKölnGermany

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