Timeline for What's the equivalent of the polarization vector of photons for gravitons?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Aug 23, 2022 at 8:10 | comment | added | Emilio Pisanty | Ask separately. | |
| Aug 22, 2022 at 22:46 | comment | added | Gerald | @EmilioPisanty The photon has energy and momentum. The polarization is perpendicular to the momentum. What means the polarization then? That the Poynting vector is in the same direction as the momentum? How is polarizition important? How can photons make an electron oscillate? Because the polarization oscillates? Ain't a photon just absorbed? Or better, its energy and momentum? | |
| Aug 22, 2022 at 22:35 | comment | added | Gerald | @EmilioPisanty If the polarization has two transversal components (like the electric and magnetic field), then, say, an electron, gets a longitudinal push? Don't the electric and magnetic fields combine? Say the electric field quantum gives a transversal push, and then the magnetic quantum gives a longitudinal push? | |
| Aug 22, 2022 at 22:14 | comment | added | Emilio Pisanty | Precisely. Energy has no direction. Momentum does, and it's along the Poynting vector (proportional to the wavevector for a plane wave), not along the polarization. | |
| Aug 22, 2022 at 21:27 | history | edited | hft | CC BY-SA 4.0 |
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| Aug 22, 2022 at 20:17 | comment | added | Gerald | @EmilioPisanty The direction of energy-momentum transfer? Not the E and p themselves. | |
| Aug 22, 2022 at 20:01 | answer | added | hft | timeline score: 4 | |
| Aug 22, 2022 at 20:01 | comment | added | Emilio Pisanty | Your last statement is inaccurate – the polarization vector of a photon does not encode momentum or energy. | |
| Aug 22, 2022 at 19:44 | history | edited | Gerald | CC BY-SA 4.0 |
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| Aug 22, 2022 at 18:56 | history | asked | Gerald | CC BY-SA 4.0 |