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Fermionen (benannt nach Enrico Fermi) sind im physikalischen Sinne alle Teilchen, die der Fermi-Dirac-Statistik genügen. Nach dem Spin-Statistik-Theorem besitzen sie einen halbzahligen Spin, also , etc. Anschaulich gesprochen sind Fermionen diejenigen Teilchen, aus denen die Materie besteht.
- Fermionen-Kondensat
Ein Fermionen-Kondensat (auch Fermi-Kondensat) ist ein...
- Fermionen-Kondensat
In particle physics, a fermion is a particle that follows Fermi–Dirac statistics. Fermions have a half-odd-integer spin ( spin 1/2, spin 3/2, etc.) and obey the Pauli exclusion principle. These particles 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.
In quantum field theory, a fermionic field is a quantum field whose quanta are fermions; that is, they obey Fermi–Dirac statistics. Fermionic fields obey canonical anticommutation relations rather than the canonical commutation relations of bosonic fields.
The model is named after the Italian physicist Enrico Fermi. [1] [2] This physical model is useful for certain systems with many fermions. Some key examples are the behaviour of charge carriers in a metal, nucleons in an atomic nucleus, neutrons in a neutron star, and electrons in a white dwarf .
Fermi–Dirac statistics is a type of quantum statistics that applies to the physics of a system consisting of many non-interacting, identical particles that obey the Pauli exclusion principle. A result is the Fermi–Dirac distribution of particles over energy states.
A fermion is a category of elementary particles. They are very small and very light. Fermions can be thought of as the building blocks of matter because atoms are made up of fermions. Paul Dirac named them fermions in honor of the famous scientist Enrico Fermi .
