Timeline for Is photon energy formula correct for wavelengths comparable to Planck's lengths?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 28, 2018 at 16:18 | comment | added | my2cts | Maybe I should add a factor of c then. | |
| Jun 28, 2018 at 14:19 | comment | added | Cosmas Zachos | Not to be a pedant, but the Planck mass is about $10^{19}$ proton masses, and about $10^9$J... the kinetic energy of a big ship, no? | |
| Jun 27, 2018 at 23:04 | comment | added | my2cts | @dmckee if you assume that this rather outrageous photon is entirely isolated indeed it can not desintegrate. I do not make such an assumption. | |
| Jun 27, 2018 at 20:56 | comment | added | dmckee --- ex-moderator kitten | "It likely explodes in a burst of particles." I don't believe you can make that conserve four-momentum if the photon in question is on-shell. but the whole point of the various Planck scales is that they represent situations where for know that current theories will fail us and therefore out-limits for the search for new physics. You can't talk sensible about a photon with the Planck energy because we don't have any theories that are correct for processes involving such a thing. | |
| Jun 27, 2018 at 20:18 | comment | added | user168013 | I believe no one was even close to creating such photon. Then while I could calculate energy of such photon based on given formula myself, you say such photon will likely to explode. That it's probably impossible to test if formula is really true at such wavelengths, unlike the case of formula of force, impulse and energy which in their newtonian forms were proved to be wrong at relativistic scales. | |
| Jun 27, 2018 at 20:05 | history | answered | my2cts | CC BY-SA 4.0 |