Question

what are tachyons?

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Answer 1

Tachyons (a Greek word meaning swift) are hypothetical particles which travel with a velocity greater than the speed of light in vacuum (or superluminal velocity) and represent the instability of the system. The first description of tachyons was given by German physicist Arnold

Answer 2

A tachyon or tachyonic particle is a hypothetical particle that always travels faster than light. Most physicists believe that faster-than-light particles cannot exist because they are not consistent with the known laws of physics. If such particles did exist, they could be used to build a tachyonic antitelephone and send signals faster than light, which (according to special relativity) would lead to violations of causality.No experimental evidence for the existence of such particles has been found.


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