Last Updated
：2025/11/20
fermion
IPA(Pronunciation)
Noun
particle
(particle
physics,
Standard
Model)
Any
elementary
or
composite
particle
that
has
half-integer
spin
and
thus
obeys
Fermi–Dirac
statistics
and
the
Pauli
exclusion
principle
(equivalently,
a
particle
for
which
the
wavefunction
of
any
system
of
identical
such
particles
changes
sign
whenever
two
are
swapped);
a
baryon,
a
lepton
or
a
quark;
Japanese Meaning
フェルミオン：半整数のスピンを持ち、フェルミ・ディラック統計およびパウリの排他原理に従う基本粒子または複合粒子。バリオン、レプトン、クォークなどが含まれる。
Sense（1）
(particle
physics,
Standard
Model)
Any
elementary
or
composite
particle
that
has
half-integer
spin
and
thus
obeys
Fermi–Dirac
statistics
and
the
Pauli
exclusion
principle
(equivalently,
a
particle
for
which
the
wavefunction
of
any
system
of
identical
such
particles
changes
sign
whenever
two
are
swapped);
a
baryon,
a
lepton
or
a
quark;
（ plural ）
Quizzes for review
(particle physics, Standard Model) Any elementary or composite particle that has half-integer spin and thus obeys Fermi–Dirac statistics and the Pauli exclusion principle (equivalently, a particle for which the wavefunction of any system of identical such particles changes sign whenever two are swapped); a baryon, a lepton or a quark;
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See correct answer
fermion
A fermion cannot share the same quantum state with another identical particle, which is why electrons occupy distinct orbitals in atoms.
See correct answer
A fermion cannot share the same quantum state with another identical particle, which is why electrons occupy distinct orbitals in atoms.
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