fermion background

fermion

/ˈfɜːmɪɒn/

Illustration fermion - Image 1

noun

费米子，费米粒子

(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; (slightly more loosely) any such particle or any composite particle composed of fermions.

Examples :

"According to the spin–statistics theorem, the wavefunction of a system of identical fermions (particles of half-integer spin) is antisymmetric under the operation of swapping any two particles."

根据自旋统计定理，如果交换任意两个相同的费米子（即自旋为半整数的粒子），该系统波函数会变成反对称的。