单词	Pauli exclusion principle
释义	Pauli exclusion principle /ˈpaʊli / (also Pauli's exclusion principle) noun Physics The assertion that no two fermions can have the same quantum number.Fermions obey the Pauli exclusion principle, which means that two of them cannot occupy the same quantum state.... For electrons, the Pauli exclusion principle paradoxically leads to an effective attraction that balances the particles' electrostatic repulsion at short distances. In addition to electrons, the Pauli exclusion principle applies to all sub-atomic particles with half-integral spins, known as fermions, such as neutrons and protons. Origin 1920s: named after W. Pauli (see Pauli, Wolfgang).
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