إحصاء الضفائر

في الرياضيات والفيزياء النظرية، إحصاء الضفائر braid statistics هو تعميم of the spin statistics of bosons and fermions based on the concept of braid group. While for fermions (Bosons) the corresponding statistics is associated to a phase gain of $\pi$ ($2\pi$) under the exchange of identical particles, a particle with braid statistics leads to a rational fraction of $\pi$ under such exchange or even a non-trivial unitary transformation in the Hilbert space (see non-Abelian anyons). A similar notion exists using a loop braid group.

Braid statistics are applicable to theoretical particles such as the two-dimensional anyons and their higher-dimensional analogues known as plektons.

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 انظر أيضاً

• Braid symmetry
• Parastatistics
• Anyon

 المراجع

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