| Wave Propagation and Group Velocity | Regrettably for , tachyons are not real physical particles that appear in nature |
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| "Reduced total energy requirements for a modified Alcubierre warp drive spacetime" | "Superstring Theory: The DNA of Reality" |
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| The Original Usenet Physics FAQ | "Origin of the Hartman effect" |
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| "Optical Precursor of a Single Photon" | But we now know that a tachyon indicates an instability in a theory that contains it |