Exclusion Principle and Quantum Mechanics on Superphysics

Exclusion principle and quantum mechanics

Fri, 13 Dec 1946 00:00:00 +0000

There were 2 approaches to the difficult problems connected with the quantum of action.

Classically Non-describable Two-valuedness

Fri, 13 Dec 1946 00:00:00 +0000

The problem of the closing of the electronic shells was not clear.

The only thing that was clear was that a closer relation of this problem to the theory of multiplet structure must exist. I therefore tried to examine again critically the simplest case, the doublet structure of the alkali spectra.

Configuration Space

Fri, 13 Dec 1946 00:00:00 +0000

What is the position of the exclusion principle on the new quantum mechanics?

Heisenberg showed that wave mechanics leads to qualitatively different conclusions for particles of the same kind (for instance for electrons) than for particles of different kinds.

Nuclear spin for the hyperfine-structure

Fri, 13 Dec 1946 00:00:00 +0000

Which are the symmetry classes for other particles?

One example for particles with symmetrical wave functions only (assumption 2) was the photon.

This is:

Nuclear spin for the hyperfine-structure

Fri, 13 Dec 1946 00:00:00 +0000

The connection between spin and symmetry class is a law of Nature.

A half-integer value of the spin quantum number is always connected with antisymmetrical states (exclusion prin- ciple), an integer spin with symmetrical states.