But we now know that a tachyon indicates an instability in a theory that contains it. Regrettably, for science fiction fans, tachyons are not real physical particles that appear in nature.

Dec 26, 2025 · Just as an ordinary particle such as an electron can exist only at speeds less than that of light, so a tachyon could exist only at speeds above that of light, at which point its mass would be …

Nov 24, 2021 · The term "tachyon" first entered scientific literature in 1967, in a paper entitled "Possibility of faster-than-light particles" by Columbia University physicist Gerald Feinberg.

Jul 11, 2024 · Once this fact was incorporated into the theory, all the difficulties mentioned earlier completely disappeared and tachyon theory became mathematically consistent.

Oct 21, 1999 · Tachyons have never been found in experiments as real particles traveling through the vacuum, but we predict theoretically that tachyon-like objects exist as faster-than-light 'quasiparticles...

Tachyon is the name given to the supposed "fast particle" which would move with v > c. Tachyons were first introduced into physics by Gerald Feinberg, in his seminal paper "On the possibility of faster …

Sep 14, 2025 · In theory, a tachyon could be used to send messages faster than light speed and this has the effect that some observers in space-time would receive the message before it was sent, …

The word tachyon derives from the Greek (tachus), meaning "speedy." Tachyons have the strange properties that, when they lose energy, they gain speed. Consequently, when tachyons gain energy, …

Explore Tachyon Physics Physics & Mathematics Understand the mathematical framework behind tachyons and their relationship to Einstein's relativity.

Oct 6, 2023 · In 1967, Gerald Feinberg coined the name tachyon. Putting a name to it led some non-physicists to assume tachyons had been found, or at least evidence for their existence identified.