Hawking's latest contribution, is this an implication?

[jaketodd]

Does this mean that everything, including us, will turn into photons/electromagnetic waves some day? Sounds fun! A universe of matter converted entirely to light!

I couldn't find any papers yet on this on scholar.google.com

Here are some good articles though:

https://www.livescience.com/space/b...niverse-is-doomed-to-evaporate-new-study-says

With more links:
https://www.google.com/search?q=hawking+evaporation+news

Does this have to do with the concept of Entropy?

Thanks,

Jake

 

[Nugatory]

I couldn't find any papers yet on this on scholar.google.com

The Physics Review Letter piece is linked from the ScienceDirect article (fortunately, because ScienceDirect generally shouldn't be taken too seriously): https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.130.221502

 

[strangerep]

Sounds fun! A universe of matter converted entirely to light!

Well, if there's a nuclear war soon, most of the protons, neutrons and electrons in your body are likely to start moving very close to the speed of light.

 

[Demystifier]

Unfortunately, this effective action approach says nothing about the quantum state of radiation.

Also, as the authors themselves say, "It is not immediately clear whether this is an additional effect to Hawking radiation or a generalization thereof".

 

[Demystifier]

Does this have to do with the concept of Entropy?

In their approach the quantum state of radiation is not known, so one cannot say what's the von Neumann entropy of radiation.

 

[pbuk]

Hawking's latest contribution

Stephen Hawking died five years ago, this "contribution" is not his (in particular the phenomenon Hawking postulated requires an event horizon whereas this new proposition does not).

 

[jaketodd]

Well, if there's a nuclear war soon, most of the protons, neutrons and electrons in your body are likely to start moving very close to the speed of light.

Darn that Putin! =) Or maybe a nuclear war would, kind of like you say, turn us all in to light, and we wouldn't wait for Hawking to free us! =)

 

[jaketodd]

Unfortunately, this effective action approach says nothing about the quantum state of radiation.

Also, as the authors themselves say, "It is not immediately clear whether this is an additional effect to Hawking radiation or a generalization thereof".

Other than photons, is there any specificity narrowing it down to a possible group of possible particles? That's interesting that it might not just be photons. Forgive me; is this what you mean? Thanks!

 

[Demystifier]

Other than photons, is there any specificity narrowing it down to a possible group of possible particles? That's interesting that it might not just be photons. Forgive me; is this what you mean? Thanks!

No, I mean that they don't write the state of radiation in a Hilbert space. Hence you can't know whether the state is pure or mixed, are there correlations between the particles, etc.

 

[PeterDonis]

Here are some good articles though

None of these are actual papers. They are pop science. Pop science articles are not a valid basis for discussion in this forum.

Does this mean that everything, including us, will turn into photons/electromagnetic waves some day?

This is indeed a speculative hypothesis based on Hawking radiation, and it has been discussed in other PF threads based on actual papers that discuss the hypothesis.

 

[PeterDonis]

Since there is no valid basis for discussion given, this thread is closed.