Question

what is the nature of tachyons ? ​

Answer 1

Answer:

Most scientists do not believe that tachyons exist. Einstein's theory of special relativity states that nothing can accelerate faster than the speed of light, while tachyons are theorized to be constantly traveling faster than the speed of light. If a tachyon did exist, it would have an imaginary number as its mass

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Answer 2

Answer:

tachyon is any hypothetical particle that can travel faster than the speed of light. The term "tachyon" was coined by Gerald Feinberg in 1967. Most scientists do not believe that tachyons exist. ... In modern physics the term "tachyon" often refers to imaginary mass fields rather than to faster-than-light particles.