Animation What causes the Pauli Exclusion Principle?

Animation What causes the Pauli Exclusion Principle?

The Pauli exclusion principle is the quantum mechanical principle which states that two or more identical fermions (particles with half-integer spin) cannot occupy the same quantum state within a quantum system simultaneously. This principle was formulated by Austrian physicist Wolfgang Pauli in 1925 for electrons, and later extended to all fermions with his spin–statistics theorem of 1940. ( From Wikipedia, the free encyclopedia )

Explains exchange forces between identical particles and the origin of the Pauli Exclusion Principle.