Traduction et analyse de mots par intelligence artificielle ChatGPT
Sur cette page, vous pouvez obtenir une analyse détaillée d'un mot ou d'une phrase, réalisée à l'aide de la meilleure technologie d'intelligence artificielle à ce jour:
- comment le mot est utilisé
- fréquence d'utilisation
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- exemples d'utilisation (plusieurs phrases avec traduction)
- étymologie
F$1$ - traduction vers allemand
![Diagram of decreasing [[aperture]]s, that is, increasing f-numbers, in one-stop increments; each aperture has half the light-gathering area of the previous one.](https://commons.wikimedia.org/wiki/Special:FilePath/Aperture diagram.svg?width=200 "Diagram of decreasing [[aperture]]s, that is, increasing f-numbers, in one-stop increments; each aperture has half the light-gathering area of the previous one.")
![Yashica-D TLR]] camera front view. This is one of the few cameras that actually says "F-NUMBER" on it.](https://commons.wikimedia.org/wiki/Special:FilePath/Yashica-D front.jpg?width=200 "Yashica-D TLR]] camera front view. This is one of the few cameras that actually says \"F-NUMBER\" on it.")
![The 24-hour tower clock in [[Venice]], using ''J'' as a symbol for 1](https://commons.wikimedia.org/wiki/Special:FilePath/Clock 24 J.jpg?width=200 "The 24-hour tower clock in [[Venice]], using ''J'' as a symbol for 1")
![[[Hoefler Text]], a typeface designed in 1991, represents the numeral 1 as similar to a small-caps I.](https://commons.wikimedia.org/wiki/Special:FilePath/Mediaevalziffern.svg?width=200 "[[Hoefler Text]], a typeface designed in 1991, represents the numeral 1 as similar to a small-caps I.")
Wikipédia
In a quantum field theory with fermions, (−1)F is a unitary, Hermitian, involutive operator where F is the fermion number operator. For the example of particles in the Standard Model, it is equal to the sum of the lepton number plus the baryon number, F = B + L. The action of this operator is to multiply bosonic states by 1 and fermionic states by −1. This is always a global internal symmetry of any quantum field theory with fermions and corresponds to a rotation by 2π. This splits the Hilbert space into two superselection sectors. Bosonic operators commute with (−1)F whereas fermionic operators anticommute with it.
This operator really shows its utility in supersymmetric theories. Its trace is the spectral asymmetry of the fermion spectrum, and can be understood physically as the Casimir effect.
