Using symmetry solving Schrödinger equation

Click For Summary
SUMMARY

The discussion centers on the implications of symmetry in solving the Schrödinger equation, particularly in the context of a double delta function potential well. It is established that if the potential is symmetric about the origin, the wave function solutions will also exhibit symmetry, either being symmetric or antisymmetric. This principle simplifies calculations significantly, as demonstrated by the behavior of stationary states in a 1D infinite potential well, where states alternate between symmetric and antisymmetric as energy levels increase.

PREREQUISITES
  • Understanding of the Schrödinger equation
  • Familiarity with quantum mechanics concepts such as wave functions
  • Knowledge of potential wells, specifically delta function potentials
  • Basic principles of symmetry in physics
NEXT STEPS
  • Study the properties of symmetric and antisymmetric wave functions in quantum mechanics
  • Explore the mathematical techniques for solving the Schrödinger equation with various potentials
  • Investigate the implications of symmetry in quantum mechanics, particularly in multi-particle systems
  • Learn about the role of boundary conditions in determining wave function behavior
USEFUL FOR

Students of quantum mechanics, physicists working with potential wells, and anyone interested in the mathematical foundations of wave functions and symmetry in quantum systems.

Pifagor
Messages
10
Reaction score
0

Homework Statement


When solving, say, the double delta function potential well, we fix constants using continuity. If the potential is symmetrical about the origin, can we conclude that the wave function, i.e. the solution, will also be symmetric? I found this way made the calculations much easier, but is it correct?
 
Physics news on Phys.org
If the potential is symmetric about the origin then the non-degenerate stationary states will either be symmetric or antisymmetric about the origin. For example, for a particle in a 1D infinite well the states alternate between symmetric and antisymmetric as you go up the energy ladder.
 
Thanks!
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
6
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 10 ·
Replies
10
Views
2K
Replies
2
Views
2K
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K