Angular momentum during bremsstrahlung

intervoxel
Messages
192
Reaction score
1
Two free electrons approach each other, so they start to emit photons due to bremsstrahlung. Where does the angular momentum carried away by the emitted photons come from?
 
Last edited:
Physics news on Phys.org
:eynman:

I'm sure experts will jump on the phrasing 'start to emit photons' . Never mind. I suppose you googled ? I got lots of useful links.
Angular momentum is conserved; the electron loses what the photon carries off (ahem...). The presence of another charged particle (normally a nucleus) that interacts through a virtual photon is essential ! There is no Feynman diagram for electron in, photon + electron out !
 
Last edited:
  • Like
Likes intervoxel
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!

Similar threads

Replies
3
Views
1K
Replies
38
Views
6K
Replies
1
Views
2K
Replies
6
Views
2K
Replies
14
Views
1K
Replies
1
Views
996
Replies
6
Views
1K
Back
Top