exclusion principle
1
9.9
- noun
- /ɪkˈskluːʒən ˈprɪnsəpəl/
- Specialized
:
principio de exclusión
- For atoms, the only nonlinearity that contributes originates from the exclusion principle and is therefore "instantaneous."
- Pauli exclusion principle
There's no question of whether if there's an exclusion principle or not, right?
- There's no question of whether if there's an exclusion principle or not, right?
Examples
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Because of the exclusion principle, the third exciton must go into the next excited orbital state.
Academic text (2002) -
And with the Poly exclusion principle, we know the rules, we know the rules.
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How might that affect the competitive exclusion principle, for example?
Academic text (2006) -
At the bottom of the bands, the carriers occupy the states out of which excitons are made, and the effects of the exclusion principle become apparent.
Academic text (1994) -
Harking back to the exclusion principle, Jordan referred to his own brainchild as "the Pauli statistics."
Academic text (1999) -
With the development of ultrashort-pulse lasers, it became possible to separate experimentally the effects of screening from those due to the Pauli exclusion principle.
Academic text (1994) -
Thanks to the Pauli exclusion principle and Zeeman splitting, up spins and down spins respond differently to the same electric field.
Academic text (2006) -
The Pauli exclusion principle states that no two identical fermions can occupy the same quantum state.
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According to the exclusion principle, electrons in an atom must have different quantum numbers.
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In quantum mechanics, the exclusion principle explains why atoms have distinct electron configurations.
Synonyms
1
9.9
A quantum physics rule that stops two electrons from being in the same state
Surface Forms
Morphology
exclusion + principle
The compound literally combines 'exclusion' (the act of excluding) and 'principle' (a rule), so a B1 learner who knows both words can infer it denotes a rule that forbids or excludes something. However, the precise, technical scope of the term in physics (the Pauli-type rule about identical fermions and quantum states) is specialized and not predictable from the constituents alone, so the expression is only partially transparent.
Etymology
Exclusion principle gives a clear image: a principle of exclusion that keeps particles of the same kind, like electrons, from sharing the same 'place' or 'state'. So, it means that no two electrons can be in the same 'state' at the same time, which explains why electrons occupy different energy levels.