Tachyons: hypothetical faster-tha-light particles

Tachyons are hypothetical particles that travel faster than the speed of light? Could they exist? Do they exist?

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[adric]

What about Chronons and Dybbuks also, do they exist?

[damianmlamb]

They work with Einstein's relativity because they're not crossing the speed of light they're coming into existence faster than the speed of light, slowest you can get them to go IS the speed of light. And putting that into the equations makes them actually live backwards in time...

[paulcalhounwaser]

Physicists have observed tachyons, so they are no longer “hypothetical.” Most physicists do not know it, but all neutrino speed measurements have yielded average speeds slightly faster than the speed of light. And the neutrinos’ rest mass-squared has been measured from neutrino oscillations, and they are negative. And the square-root rest masses are imaginary. According to special relativity, positive relativistic mass must always travel slower than the speed of light. Conversely, negative relativistic mass must always travel faster than the speed of light. Thus, neutrinos have negative relativistic mass and negative-imaginary rest mass. Neutrinos are tachyons and cannot rest but must travel faster than the speed of light in a vacuum.
Although we would measure neutrinos as going backward in time, they do not actually go there. We measure what occurred in the past. The arrow of time goes uniformly forward in the rest frame. Everything we see and measure is in the past, but nothing goes there. There is no “tachyonic antitelephone.”
I have uploaded several papers on these properties to Academia.com.

[laeequenadvi]

Travel at the speed of light Sommerield.

[Markoul]

I don't agree. Tachyons increasing speed will increase in energy but loose in mass. Not lose in energy.

[baraskparas]

Hello Darling. You've confused yourself by accepting all the definitions thrown your way by physics dogma hence your mini lectures are confused and confusing. Be radical, question everything and find your own TOE, it's out there.