QM & Relativity: Can Photons Moving at Speed of Light Be Stationary?

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SUMMARY

The discussion centers on the concept of whether photons, which travel at the speed of light (186,282 miles per second), can be considered stationary according to the principles of relativity. It is established that all uniformly moving reference frames are equivalent, leading to the notion that a photon could be viewed as stationary from its own perspective. However, due to the postulate that the speed of light remains constant across all reference frames, photons cannot be at rest in any frame. The conversation also touches on the implications of light traveling at different speeds and references George Gamow's book, "Mr. Tompkins in Paperback," for further exploration of these ideas.

PREREQUISITES
  • Understanding of Einstein's theory of relativity
  • Familiarity with the concept of reference frames
  • Basic knowledge of quantum mechanics (QM) and non-locality
  • Awareness of the speed of light as a fundamental constant
NEXT STEPS
  • Research Einstein's postulates of special relativity
  • Explore the implications of time dilation in high-velocity scenarios
  • Study the concept of non-locality in quantum mechanics
  • Read "Mr. Tompkins in Paperback" by George Gamow for a popular explanation of relativistic concepts
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Students of physics, educators, and anyone interested in the intersection of quantum mechanics and relativity, particularly those exploring the nature of light and motion.

wittgenstein
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My understanding is that any uniform motion ( according to relativity) can be considered stationary. For example if object A is moving at a constant velocity, it is as legitimate to say that it is stationary as to say that it is in motion. Why cannot a photon, moving at the speed of light and at a constant velocity ,be considered stationary? In that case according to the photon's "viewpoint" the space it traverses is non existent. This seems to me to coincide with QM's idea of non-locality.
One more related question. Why is the speed of light 186,282 mps? Why not 186,283mps? To make my point more dramatic, suppose that photons of light in a vacuum traveled at 45 miles per hour. Would time dilation effects then be noticeable at 20 miles per hour? I would guess not ( I could be wrong, I'm not a physicist, just a curious layman) . Then, my question becomes why do photons move at the exact speed that time ( for them) ceases?
 
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wittgenstein said:
My understanding is that any uniform motion ( according to relativity) can be considered stationary.
A postulate of relativity is that all uniformly moving reference frames are equivalent and equally entitled to be considered 'stationary'.
For example if object A is moving at a constant velocity, it is as legitimate to say that it is stationary as to say that it is in motion.
OK.
Why cannot a photon, moving at the speed of light and at a constant velocity ,be considered stationary?
Since another postulate of relativity is that the speed of light is the same in all reference frames, light itself cannot be at rest in any reference frame.
 
There's no reason why one can't consider a photon to be stationary.
It might be amusing to do so.
I guess that from that perspective the entire universe would contract to a two dimensional plane and time would freeze.
I've never looked into the physics of Black Holes (one day if I live long enough) but I would have thought the math involved should consider a situation close to this.

As to Light at 45mph, George Gamow wrote a book entitled 'Mr Tompkins in paperback' where he discussed this, and other concepts in detail at a popular level - worth a read if you can find a copy.
 

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