Foundations of Physics Letters

, Volume 2, Issue 2, pp 127-149

First online:

Quantum field theory cannot provide faster-than-light communication

  • Phillippe H. EberhardAffiliated withLawrence Berkeley Laboratory, University of California
  • , Ronald R. RossAffiliated withLawrence Berkeley Laboratory, University of California

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We spell out a demonstration that, within the framework of quantum field theory, no faster-than-light communication can be established between observers. The steps of the demonstration are detailed enough to pinpoint which properties of the theory have been misinterpreted in previous papers claiming the existence of effects that could permit such communication. The developments described here can also be used to analyze future papers making similar claims.

Key words

quantum mechanics quantum field theory faster-than-light communication