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单词 fermion
释义

Definition of fermion in English:

fermion

noun ˈfəːmɪɒn
Physics
  • A subatomic particle, such as a nucleon, which has half-integral spin and follows the statistical description given by Fermi and Dirac.

    〔物理〕费密子

    Compare with boson
    Example sentencesExamples
    • Well, what we find experimentally is that the quasiparticles are almost always fermions or bosons.
    • 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.
    • What happens next in these so-called quantum-degenerate gases depends on whether the atoms are bosons or fermions.
    • But if supersymmetry were unbroken, fermions and bosons would be exactly matched in the Universe, and that's not the way things are.
    • But physicists have since extended their work to create Fermi gases made from atoms that are fermions - particles with half-integer spin.

Origin

1940s: from the name of Fermi, Enrico + -on.

Definition of fermion in US English:

fermion

noun
Physics
  • A subatomic particle, such as a nucleon, which has half-integral spin and follows the statistical description given by Fermi and Dirac.

    〔物理〕费密子

    Example sentencesExamples
    • 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.
    • What happens next in these so-called quantum-degenerate gases depends on whether the atoms are bosons or fermions.
    • But if supersymmetry were unbroken, fermions and bosons would be exactly matched in the Universe, and that's not the way things are.
    • But physicists have since extended their work to create Fermi gases made from atoms that are fermions - particles with half-integer spin.
    • Well, what we find experimentally is that the quasiparticles are almost always fermions or bosons.

Origin

1940s: from the name of Fermi, Enrico + -on.

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