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  1. Tachyon - Wikipedia

    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.

  2. Tachyon | Faster-Than-Light, Quantum Mechanics, Particles

    Oct 31, 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 …

  3. Tachyons: Facts about these faster-than-light particles | Space

    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.

  4. Do tachyons exist? - Department of Mathematics

    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 …

  5. Physicists suggest tachyons can be reconciled with the special …

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

  6. What is known about tachyons, theoretical particles that travel …

    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 …

  7. Tachyon -- from Eric Weisstein's World of Physics - Wolfram

    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 …

  8. TACHYON Definition & Meaning - Merriam-Webster

    The meaning of TACHYON is a hypothetical particle held to travel faster than light.

  9. Tachyon - Wikiwand

    A tachyon or tachyonic particle is a hypothetical particle that always travels faster than light. Physicists posit that faster-than-light particles cannot exist...

  10. If tachyons exist, how might they be detected? | Astronomy.com

    Sep 12, 2016 · How particles are detected depends on properties other than their velocity. To answer your question, we have to ask: What kind of particle might be a tachyon?