Are there particle's or masses that travel faster than light?

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SUMMARY

The discussion centers on the concept of faster-than-light (FTL) communication and particles, specifically addressing the validity of claims regarding tunneling signals and tachyons. Participants cite key studies, including H. Winful's works and the Nature article by Buttiker and Washburn, to emphasize the lack of consensus on FTL communication. The conversation also highlights the distinction between non-locality and FTL movement, asserting that while quantum entanglement appears instantaneous, it does not facilitate FTL communication. Ultimately, the consensus is that no verified experiment has demonstrated FTL messaging.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly quantum entanglement.
  • Familiarity with the concept of non-locality in physics.
  • Knowledge of the double slit experiment and its implications in quantum physics.
  • Awareness of theoretical particles such as tachyons and their hypothetical properties.
NEXT STEPS
  • Research "quantum entanglement and communication" to explore its limitations.
  • Study "H. Winful's research on tunneling signals" for insights on FTL claims.
  • Examine "the double slit experiment" and its implications for quantum mechanics.
  • Investigate "tachyons and their theoretical implications" in modern physics.
USEFUL FOR

Physicists, students of quantum mechanics, and anyone interested in the implications of faster-than-light theories and their impact on communication and particle physics.

  • #31
No information, intelligence, can be sent faster than light. Entanglement appears to be instantaneous, yet no information is communicated. "c" appears to be one of the fundamental constants in this universe...and one of it's most limiting ones.
 
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  • #32
ok this thread is changing into something else.
 
  • #33
if a particle travels faster than light,with just it's presence in the past,it will violate causality?
 
Last edited:
  • #34
what is a light cone?
 
  • #35
Naty1 said:
No information, intelligence, can be sent faster than light. Entanglement appears to be instantaneous, yet no information is communicated. "c" appears to be one of the fundamental constants in this universe...and one of it's most limiting ones.
Yep. I just looked up the experiment I quoted, and it involves a coincidence counter.

Transmitting information probably requires transmitting energy, and hence mass. This would rule out any FTL communictaion...
 

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