A sixty-year old calculation by Enrico Fermi is discovered to be in error, and interatomic signalling between atoms to be potentially faster than light. But this is not a sign that time machines that defy causality can now be built.
Article PDF
Rights and permissions
About this article
Cite this article
Maddox, J. Time machines still over horizon. Nature 367, 509 (1994). https://doi.org/10.1038/367509a0
Issue Date:
DOI: https://doi.org/10.1038/367509a0
This article is cited by
-
Interatomic signalling in QED
Nature (1994)