Timeline for What's the equivalent of the polarization vector of photons for gravitons?
Current License: CC BY-SA 4.0
8 events
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| Aug 22, 2022 at 21:36 | comment | added | Gerald | Thanks for the link and answer! Seems the answer is there. Will a virtual graviton have ten independent components? | |
| Aug 22, 2022 at 21:34 | comment | added | hft | You will have to wait for someone else to fill in the details, sorry. | |
| Aug 22, 2022 at 21:33 | comment | added | Gerald | @hft Which means two dof? The transversal modes? | |
| Aug 22, 2022 at 21:26 | comment | added | hft | I don't know how to prove that the graviton only has two polarization off the top of my head. Perhaps someone else will be able to. | |
| Aug 22, 2022 at 21:24 | comment | added | hft | @Gerald Sounds like you are interested in the graviton's degrees of freedom. ACuriousMind's linked answer and this answer may help: physics.stackexchange.com/questions/74307/… | |
| Aug 22, 2022 at 21:05 | comment | added | Gerald | But how the actual "polarization" tensor for a graviton looks like? | |
| Aug 22, 2022 at 20:08 | comment | added | ACuriousMind♦ | The graviton, being massless, has the same "funny business" as the photon (though the technical details differ especially in arbitrary dimension, see physics.stackexchange.com/q/134197/50583) and should also have only two polarizations in 4D (usually denoted by "+" and "x"), no? | |
| Aug 22, 2022 at 20:01 | history | answered | hft | CC BY-SA 4.0 |