File:Faster_than_light_implies_time_travel_diagram.svg · Wikimedia Commons · See Wikimedia Commons
A tachyon () or tachyonic particle is a hypothetical particle that always travels faster than light. Physicists posit that faster-than-light particles cannot exist because they are inconsistent with the known laws of physics. If such particles did exist they perhaps could be used to send signals faster than light and into the past. According to the theory of relativity this would violate causality, leading to logical paradoxes such as the grandfather paradox. Tachyons would exhibit the unusual property of increasing in speed as their energy decreases, and would require infinite energy to slow
A tachyon is a hypothetical particle that would travel faster than light, but physicists believe such particles cannot actually exist because they contradict the established laws of physics. If tachyons did exist, they could theoretically enable faster-than-light communication and time travel, which would create logical paradoxes that violate the principle of causality.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Particle.name
- Tachyon
- Particle.classification
- Elementary particle
- Particle.status
- Hypothetical
- Particle.theorized
- 1967
via Wikipedia infobox
Wikidata facts
- Image
- Tachyon04s.gif
- Speed
- 299792458
- Has use
- superluminal communication
Show 3 more facts
- Commons category
- Tachyon
- Stack Exchange tag
- physics.stackexchange.com/tags/tachyon
- topic's main category
- Category:Tachyons
via Wikidata · CC0