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Can/do relativistic effects explain select quantum phenomena

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San K
#1
Jun25-11, 12:40 PM
P: 915
Can/do relativistic effects explain select quantum "phenomena"?

A photon (a mass less "particle" that travels at the speed of light) experiences space-time in a different manner.

A photon does not experience time.

Would the sun and earth, for example, seem, in a sense, joined for the photon?

There is our frame of reference and the other is from the photons' view.

Does the photon, in a sense, travel outside space-time when not interacting with any matter-energy?

Does the photon length, in a sense, equal infinity? (from the length/time dilation, Lorentz transformation, equations)

Can quantum entanglement be explained by relativistic effects?
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alxm
#2
Jun25-11, 05:20 PM
Sci Advisor
P: 1,866
Quote Quote by San K View Post
Would the sun and earth, for example, seem, in a sense, joined for the photon? [..] Does the photon length, in a sense, equal infinity? (from the length/time dilation equations)
If you like; a photon essentially 'leaves' and 'arrives' at the same instant, and the 'length' it traveled (in the c reference frame) is zero.
Does the photon, in a sense, travel outside space-time when not interacting with any matter-energy?
Nope.
Can quantum entanglement be explained by relativistic effects?
Certainly not directly; entanglement exists in both non-relativistic and relativistic quantum mechanics. We've reconciled QM and SR without managing to explain it, so it doesn't seem there's any direct connection. On the other hand, any theory which ultimately does explain entanglement and other mysteries of QM must be compatible with SR. But there's no apparent reason to believe they're directly connected.
San K
#3
Jun25-11, 08:49 PM
P: 915
Quote Quote by alxm View Post
If you like; a photon essentially 'leaves' and 'arrives' at the same instant, and the 'length' it traveled (in the c reference frame) is zero.


Nope.


Certainly not directly; entanglement exists in both non-relativistic and relativistic quantum mechanics. We've reconciled QM and SR without managing to explain it, so it doesn't seem there's any direct connection. On the other hand, any theory which ultimately does explain entanglement and other mysteries of QM must be compatible with SR. But there's no apparent reason to believe they're directly connected.
well said alxm.

just a thought

from viewpoint of us (i.e. our frame of reference), there is distance between the entangled twins and is equal to the distance we separated them by

from the viewpoint of the photon, there is no distance between the entangled twins (length traveled is zero)

does this, in some sense, explain instantaneous effects in quantum entanglement?

Quote Quote by alxm View Post
Certainly not directly; entanglement exists in both non-relativistic and relativistic quantum mechanics.
what do we mean by non-relativistic? can we observe entanglement effects between particles that move much slower than speed of light....say less than 50%?


Quote Quote by alxm View Post
If you like; a photon essentially 'leaves' and 'arrives' at the same instant, and the 'length' it traveled (in the c reference frame) is zero.
the length, as well as the time traveled, is zero


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