In an Abelian Chern--Simons theory, the equation of motion ties a quasiparticle's gauge charge to gauge flux . A quasiparticle of charge encircling it therefore acquires the Aharonov--Bohm phase .
Represent quasiparticle worldlines by conserved currents and add the minimal-coupling term
Up to the corresponding sign convention for charge, variation of the Abelian Chern--Simons theory gives
For a static quasiparticle of integer gauge-charge vector , integration over a small surrounding disk yields the Chern--Simons flux attachment relation
A quasiparticle of charge carried once around this flux acquires the Aharonov--Bohm phase
so
The constituent-particle current has charge vector . Its integral over the same disk is
For and , this gives . The self-exchange angle is , so the excitation is a fermion with one unit of microscopic particle number and may be identified with an electron.
In the charge-flux composite model, particle acquires the Aharonov-Bohm effect phase when it circles the flux of particle . The reciprocal Aharonov-Casher effect contributes . Thus the full braid is
The assumption for and says
For any allowed particle , the full braid with is ; similarly every particle braids trivially with . Under the stated operational identification,
For , exchanging two identical composites is half their full braid and gives
Therefore and reproduce the bosonic and particles, in either order, and reproduces their fermionic fusion product .