Timeline for How large or small can frequency in the EM spectrum get?
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6 events
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| Mar 4, 2021 at 13:23 | comment | added | Jim | @Cham An interesting thought. The size of the black hole would mean that it would, as you say, evaporate very quickly. But the Hawking radiation wouldn't just be one photon at high energy, it would be many particles at low energy. So, if I might offer speculation, this would look like the photon spontaneously decays into many lower energy photons and particles. If true, this might explain why we don't see many photons at that energy, but it has worrying implications within special relativity.... which probably means I'm wrong | |
| Sep 19, 2019 at 2:16 | comment | added | Cham | The high frequency photon creating a black hole that destroys the photon feels very weird to me. The new black hole should then produce Hawking radiation that rip-off the black hole, so the photon is back there again, and so on... Or the photon creates a wormhole and pass through it. Pretty sick! | |
| Aug 18, 2015 at 21:55 | comment | added | Jim | Our current descriptions say a photon with a wavelength of the Planck length can spontaneously generate a particle with size and mass sufficient to be a black hole and, thus distort spacetime and consume the photon. This means that 1) gravity becomes significant at those quantum scales and 2) without some theory describing gravity adequately at quantum scales, we would expect that these tiny black holes would be flying around the universe (which is scary and thankfully not something we observe). So we need a theory that can adequately describe gravity on quantum scales... Quantum Gravity | |
| Aug 18, 2015 at 21:39 | vote | accept | Shaurya Bhave | ||
| Aug 18, 2015 at 21:38 | comment | added | Shaurya Bhave | Ah okay thanks, follow up: Why does this necessitate quantum gravity? i'm not saying we don't need it, by why does the photon of planck wavelength need quantum gravity? Is that a bit too long to answer here? | |
| Aug 18, 2015 at 14:58 | history | answered | Jim | CC BY-SA 3.0 |