What does fermion mean?

Definitions for fermion
ˈfɜr miˌɒn, ˈfɛər-fermion

This dictionary definitions page includes all the possible meanings, example usage and translations of the word fermion.

Princeton's WordNet

  1. fermionnoun

    any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle

Wiktionary

  1. fermionnoun

    A particle with totally antisymmetric composite quantum states, which means it must obey the Pauli exclusion principle and Fermi-Dirac statistics. They have half-integer spin. Among them are many elementary particles, most derived from quarks. Compare boson.

  2. Etymology: From Enrico Fermi (Italian-American physicist) + -on.

Wikipedia

  1. Fermion

    In particle physics, a fermion is a particle that follows Fermi–Dirac statistics. Generally, it has a half-odd-integer spin: spin 1/2, spin 3/2, etc. In addition, these particles obey the Pauli exclusion principle. Fermions include all quarks and leptons and all composite particles made of an odd number of these, such as all baryons and many atoms and nuclei. Fermions differ from bosons, which obey Bose–Einstein statistics. Some fermions are elementary particles (such as electrons), and some are composite particles (such as protons). For example, according to the spin-statistics theorem in relativistic quantum field theory, particles with integer spin are bosons. In contrast, particles with half-integer spin are fermions. In addition to the spin characteristic, fermions have another specific property: they possess conserved baryon or lepton quantum numbers. Therefore, what is usually referred to as the spin-statistics relation is, in fact, a spin statistics-quantum number relation.As a consequence of the Pauli exclusion principle, only one fermion can occupy a particular quantum state at a given time. Suppose multiple fermions have the same spatial probability distribution. Then, at least one property of each fermion, such as its spin, must be different. Fermions are usually associated with matter, whereas bosons are generally force carrier particles. However, in the current state of particle physics, the distinction between the two concepts is unclear. Weakly interacting fermions can also display bosonic behavior under extreme conditions. For example, at low temperatures, fermions show superfluidity for uncharged particles and superconductivity for charged particles. Composite fermions, such as protons and neutrons, are the key building blocks of everyday matter. English theoretical physicist Paul Dirac coined the name fermion from the surname of Italian physicist Enrico Fermi.

ChatGPT

  1. fermion

    A fermion is a type of particle in quantum mechanics. Named after the physicist Enrico Fermi, fermions are particles that follow Fermi-Dirac statistics and have half-integer spins such as -1/2, 1/2, -3/2, 3/2, etc. They are subject to the Pauli Exclusion Principle, which states that no two fermions can occupy the same quantum state at the same time, thus preventing them from occupying the same space. Fermions include subatomic particles such as electrons, protons, and neutrons.

Wikidata

  1. Fermion

    In particle physics, a fermion is any particle characterized by Fermi–Dirac statistics and following the Pauli exclusion principle; fermions include all quarks and leptons, as well as any composite particle made of an odd number of these, such as all baryons and many atoms and nuclei. Fermions contrast with bosons which obey Bose–Einstein statistics. A fermion can be an elementary particle, such as the electron; or it can be a composite particle, such as the proton. According to the spin-statistics theorem in any reasonable relativistic quantum field theory, particles with integer spin are bosons, while particles with half-integer spin are fermions. Besides this spin characteristic fermions have another specific property: they possess conserved baryon or lepton quantum numbers. Therefore what is usually referred as the spin-statistics relation is in fact a spin-statistics-quantum number relation. In contrast to bosons, as a consequence of the Pauli principle only one fermion can occupy a particular quantum state at any given time. If multiple fermions have the same spatial probability distribution, then at least one property of each fermion, such as its spin, must be different. Fermions are usually associated with matter, whereas bosons are generally force carrier particles; although in the current state of particle physics the distinction between the two concepts is unclear.

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Numerology

  1. Chaldean Numerology

    The numerical value of fermion in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of fermion in Pythagorean Numerology is: 8

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"fermion." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/fermion>.

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