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

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Discussion Overview

The discussion revolves around the concept of particles or masses that may travel faster than light, exploring theoretical implications, experimental claims, and the relationship between quantum mechanics and faster-than-light (FTL) communication. Participants examine various models, including tunneling effects, tachyons, and quantum entanglement, while addressing the constraints imposed by special relativity.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants speculate on the consequences of traveling faster than light, questioning what would happen if such speeds were achievable.
  • There are claims that messages have been sent faster than light using the tunneling effect, although this is contested and lacks consensus.
  • Participants reference tachyons as hypothetical particles that could travel faster than light, but acknowledge their controversial status.
  • Concerns are raised about the validity of using Wikipedia as a source for information on FTL communication.
  • Quantum entanglement is discussed, with some participants suggesting it implies instantaneous effects, while others clarify that it does not allow for FTL communication.
  • Virtual particles are mentioned, with questions about their potential to exceed light speed, but responses indicate that they do not represent actual faster-than-light travel.
  • Vacuum fluctuations at the sub-Planck scale are proposed as a possible avenue for FTL events, though this idea is met with skepticism and calls for clarification.

Areas of Agreement / Disagreement

Participants express multiple competing views on the possibility of FTL travel and communication. There is no consensus on the validity of claims regarding tunneling, tachyons, or the implications of quantum entanglement. The discussion remains unresolved with ongoing debate about the interpretations of various phenomena.

Contextual Notes

Participants highlight limitations in the discussion, including the lack of verified experiments demonstrating FTL communication and the need for careful consideration of definitions and assumptions related to quantum mechanics and relativity.

  • #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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