Is there such a thing as forbidden bound-free atomic transitions?

  • Context: Graduate 
  • Thread starter Thread starter Aoife973
  • Start date Start date
  • Tags Tags
    Atomic
Click For Summary
SUMMARY

This discussion centers on the concept of forbidden transitions in atomic physics, specifically regarding bound-free transitions in neutral Helium atoms. The user inquires whether there are energy levels that render the transition to an ionized state forbidden. The responses clarify that while "forbidden" transitions are less likely to occur, they are not entirely prohibited. The conversation emphasizes the importance of understanding the specific conditions under which these transitions may happen.

PREREQUISITES
  • Basic understanding of atomic structure and electron configurations
  • Familiarity with quantum mechanics principles
  • Knowledge of forbidden transitions in atomic physics
  • Understanding of ionization processes in neutral atoms
NEXT STEPS
  • Research the principles of forbidden transitions in quantum mechanics
  • Study the ionization energy levels of Helium and other noble gases
  • Explore the concept of metastable states in atomic systems
  • Learn about the selection rules governing atomic transitions
USEFUL FOR

Students and researchers in atomic physics, quantum mechanics enthusiasts, and anyone interested in the behavior of electrons in atoms and the conditions for atomic transitions.

Aoife973
Messages
1
Reaction score
0
So I've been studying forbidden transitions and metastable states in atoms, etc., and I was just wondering if there is such a thing as forbidden bound-free transitions? I've only encountered bound-bound.

For example, if you have a neutral Helium atom with two electrons, I understand how forbidden transitions arise within that ion. But are there certain energy levels for which the transition to the ionised state is forbidden?

Thanks for any information! I tried googling but wasn't able to figure it out.
 
Physics news on Phys.org
Welcome to PF;
It can help to concentrate on what the terms are actually describing.
"Forbidden" transitions are not actually forbidden forbidden since they can happen.

What exactly it it about the transition that is forbidden?
 

Similar threads

Graduate Confused about selection rules in optical transitions
  • · Replies 0 ·
Replies
0
Views
2K
Graduate Lennard-Jones for bound/unbound atoms?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How a mirror works: condensed matter explanation
  • · Replies 6 ·
Replies
6
Views
3K
Line Spectra correct intepretation
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Transition of free to bound electrons
  • · Replies 14 ·
Replies
14
Views
3K
Graduate Plasma ball, energy levels of neon and xenon
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Numerical Hartree Fock with Finite Difference Matrices for Helium
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Layman understanding Atom movement with added energy
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Basic Structure & Behavior of The Atom Oh, and hi
  • · Replies 10 ·
Replies
10
Views
8K
High School How is surface charge accumulated?
  • · Replies 36 ·
2
Replies
36
Views
7K