Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Evidence supporting the existense of tachyons?

  1. Apr 2, 2004 #1
    Is there any evidence supporting the existense of tachyons? Or is it all theory?
  2. jcsd
  3. Apr 2, 2004 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Not a shred of evidence.

    - Warren
  4. Apr 2, 2004 #3
    No evidence currently exists, yet is open to new discoveries as may be found.
  5. Apr 10, 2004 #4
    No evidence - pure theory of time and c


    The beauty of mathematics and physics is that they sometimes allow us to predict things before they are observed.

    The theory of the tachyon is based on your definition or perception of the dimension we call time and its relationship to c.

    Nothing can travel faster than the speed of light unless it’s never travelled any slower. To travel faster than the speed of light would require travelling backward in time, a particle, call a tachyon.

    Or is a tachyon a single anti-photon quantum tunnelling through time, who knows?

    There is no scientific evidence supporting the existence of the tachyon, it is all based on your option of the pure theory, on which it is based apon.

    Reality is more bizarre than fiction!

    Then you have to explain all the facts.

    I hope that has answered your question about the tachyon theorem.
  6. Apr 10, 2004 #5

    matt grime

    User Avatar
    Science Advisor
    Homework Helper

    I think you mean, Terry, that there is no empirical evidence, not there is no scientific evidence.

    And things may travel faster than the speed of light, and slow down and everything. Here's an example by a well known relativist:

    suppose we have a sufficiently long pair of scissors that we shut. Then the speed at which the point where the blades first meet may travel towards the end of the blades at faster than the speed of light, physical constraints of building and shutting the things excepted. There is no "information transmitted" to violate any inertial frame arguments etc.
  7. Apr 10, 2004 #6


    User Avatar
    Science Advisor

    If tachyons do exist, should we not have found them some time before we started looking? :wink:
  8. Apr 11, 2004 #7
    That depends on your definition of antimatter

    Lurch, thats the best quote I heard a tachyon ago.

    Which depends of course on everyone's definition of what antimatter is?

    And what a tachyon is? - If you have the time?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook