Pauli exclusion principle

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Pau·li exclusion principle

 (pô′lē, pou′-)
[After Wolfgang Pauli.]

Pauli exclusion principle

(Atomic Physics) physics the principle that two identical fermions cannot occupy the same quantum state in a body such as an atom. Sometimes shortened to: exclusion principle

exclu′sion prin`ciple

the quantum-mechanical principle that no two identical particles having spin equal to half an odd integer can be in the same quantum state.
Also called Pauli exclusion principle.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Pauli exclusion principle - no two electrons or protons or neutrons in a given system can be in states characterized by the same set of quantum numbers
law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics"
References in periodicals archive ?
Current suppression in a small magnetic field can ultimately be traced back to the famous Pauli exclusion principle, the quantum mechanical principle that states that no two electrons (fermions) may have identical quantum numbers.
Following the Pauli exclusion principle, each configuration should not contain two or more identical single particle quantum states of the same Dirac particle.
The 14 chapters begin with the theory of relativity and continue through configuration of the atom, quantum state of atoms, electron spin, the Pauli exclusion principle, X-rays, and other topics, ending with a chapter on high-energy physics.
3) For example, in chapter 2, he says "indistinguishability leads directly to the famous Pauli exclusion principle (not true--one also needs the fermionic nature of electrons) and in chapter 6, he tells us that an "elevator's acceleration due to gravity cancels the gravitational force, and the freely falling elevator becomes an inertial reference frame" (gravity--that is, the curvature of space--causes the acceleration, rather than canceling it; by "inertial frame" we usually mean a non-accelerating frame).
This repulsive force stems from a quantum mechanical effect called the Pauli exclusion principle.
How was knowing how to use the Pauli exclusion principal, and decipher a quantum mechanical model, going to help me teach English to eager ninth-graders?