How Does a Photon Get Absorbed at t=0?

  • Context: Graduate 
  • Thread starter Thread starter Dead RAM
  • Start date Start date
  • Tags Tags
    Photon
Click For Summary

Discussion Overview

The discussion revolves around the nature of photons, particularly focusing on the concept of time and causality at the speed of light (v=c). Participants explore the implications of a photon experiencing time as t=0 and how this affects its interactions with other particles or systems. The conversation touches on wave-particle duality, the concept of inertial frames, and the relationship between photons and vacuum energy.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant suggests that if a photon experiences t=0, it raises questions about how it can interact with other particles, proposing that photons might be akin to shadows moving at faster-than-light speeds.
  • Another participant asserts that time does not apply to photons, as they cannot possess mass, and thus the concept of time for a photon is meaningless.
  • A different viewpoint posits that while photons do not understand time, the entities that absorb them do have a spatial understanding, leading to questions about the contributions of all atoms to light distortions.
  • One participant challenges the validity of using a photon's reference frame, labeling it as self-contradictory and leading to confusion.
  • Another participant expresses confusion about the implications of their questions regarding the interactions of photons and the nature of causality in quantum mechanics.

Areas of Agreement / Disagreement

Participants express differing views on the nature of time and causality for photons, with no consensus reached on the implications of t=0 for photon interactions. Some participants agree on the self-contradictory nature of a photon's reference frame, while others continue to explore the concept.

Contextual Notes

The discussion includes assumptions about inertial frames and the nature of time as it relates to massless particles. There are unresolved questions regarding the implications of these assumptions on the understanding of light and its interactions.

Dead RAM
Messages
3
Reaction score
0
There are many things that confuse me, my wife, my job, but at the moment, mostly a photon.

I am a photon, t=0, since v=c. Ok, but t=0 is accurate to infinity to the power of infinity, for a photon. it doesn't even aproche infinity, it starts there.

To be causal, in any other inertial frame (and for simplicity, let's say all frames are inertial in this thought expiriment) t= time for photon to get to some destination for that destinations observer (or electron, maybe). In other words, the light cone of the photon.

=== edit for clarity ===
inertial frame, as i understand it, is a non-accelerating frame
=== end edit ===

So that kind of explains wave particle duality of photons, the photon experiances being everywhere it could be, until it interacts with something (decay, electron, etc...)

*BUT* if t=0, how in the physics does it manage to do anything? are photons the same sort of thing as shadows (for instance, cast by a planet, onto a moon, traveling at ftl speed)? if not, should they be subject to a slowdown, even of less then a plank length, to allow their clocks to tick, for some interaction?

If t=0, and v=c, isn't your experience equal to being the aether, or maybe the vacuum energy? and isn't any observer going to at best notice an increase or decrease (depending on the math) in vacuum energe, over time - as more and more photons (gravitrons, etc...) become the aether across their light cone.

Shouldn't c be some "perfect speed", and the actual speed of light in a perfect vacuum be something slightly smaller?

Maybe it's because they interact in space, while t=0, but in that case, shouldn't light always interact with the first potential suitor?

Anywho, my first post here, many internet searches deep, minimal university experience in the field, but please include both formulas and plain explinations or examples... no need to turn on spell check thoguh :P Appologies :)

Also, not interested in 'you can't go luminal' replies, we are talking zero rest mass here, and my confution comes from zero ~time~ to interact, or be causal. For both photons, and wife XD
 
Last edited:
Physics news on Phys.org
Dead RAM said:
There are many things that confuse me, my wife, my job, but at the moment, mostly a photon.

I am a photon, t=0, since v=c. Ok, but t=0 is accurate to infinity to the power of infinity, for a photon. it doesn't even aproche infinity, it starts there.

To be causal, in any other inertial frame (and for simplicity, let's say all frames are inertial in this thought expiriment) t= time for photon to get to some destination for that destinations observer (or electron, maybe). In other words, the light cone of the photon.

=== edit for clarity ===
inertial frame, as i understand it, is a non-accelerating frame
=== end edit ===

So that kind of explains wave particle duality of photons, the photon experiances being everywhere it could be, until it interacts with something (decay, electron, etc...)

*BUT* if t=0, how in the physics does it manage to do anything? are photons the same sort of thing as shadows (for instance, cast by a planet, onto a moon, traveling at ftl speed)? if not, should they be subject to a slowdown, even of less then a plank length, to allow their clocks to tick, for some interaction?

If t=0, and v=c, isn't your experience equal to being the aether, or maybe the vacuum energy? and isn't any observer going to at best notice an increase or decrease (depending on the math) in vacuum energe, over time - as more and more photons (gravitrons, etc...) become the aether across their light cone.

Shouldn't c be some "perfect speed", and the actual speed of light in a perfect vacuum be something slightly smaller?

Maybe it's because they interact in space, while t=0, but in that case, shouldn't light always interact with the first potential suitor?

Anywho, my first post here, many internet searches deep, minimal university experience in the field, but please include both formulas and plain explinations or examples... no need to turn on spell check thoguh :p Appologies :)

Also, not interested in 'you can't go luminal' replies, we are talking zero rest mass here, and my confution comes from zero ~time~ to interact, or be causal. For both photons, and wife XD
Time is what a clock measures. You can't build a clock out of just photons, you need something with mass to build a clock. Something with mass cannot go at the speed of light. Therefore, time does not apply to a photon. It's not that time is zero for a photon, the concept is meaningless. So don't waste your time trying to analyze time for a photon. (You cannot be a photon.)
 
If I understand you correctly, the photon has no understanding of time, but the X that absorbes it, at least has an understanding of space, related to that photon, and causal enough... So a photon will travel it's light cone at it's t=0, and an absorber of the photon willl simply be the first "space" that a photon could be causal too.

In that case, shouldn't every atom in the visible universe contribute to distortions of light, and other causal effects?

Perhaps that question answers my dilemma.
 
Dead RAM said:
If I understand you correctly, the photon has no understanding of time, but the X that absorbes it, at least has an understanding of space, related to that photon, and causal enough... So a photon will travel it's light cone at it's t=0,
If you understood me correctly, you wouldn't repeat your mistake in bold.

Dead RAM said:
and an absorber of the photon willl simply be the first "space" that a photon could be causal too.

In that case, shouldn't every atom in the visible universe contribute to distortions of light, and other causal effects?

Perhaps that question answers my dilemma.
That question is incomprehensible to me. Even without considering what you said before your question, why do you bring up "every atom in the visible universe" and what are "distortions of light"?

It seems to me that you are really trying to understand an issue with quantum mechanics using Special Relativity, is that correct?
 
Thanks DaleSpam, your reply explains why it's an unusual question.

And thanks ghwellsjr, I was unable to understand your first attempt, but I think I get it now :) If t=0, or v=v=c=0 (as in Dale's link), then a lot of non-sense happends.
 

Similar threads

  • · Replies 25 ·
Replies
25
Views
2K
  • · Replies 12 ·
Replies
12
Views
3K
  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 58 ·
2
Replies
58
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 48 ·
2
Replies
48
Views
6K
  • · Replies 45 ·
2
Replies
45
Views
11K
  • · Replies 5 ·
Replies
5
Views
3K
Replies
28
Views
5K