Non-topological fractional fermion number in the Jackiw-Rossi model

Caio Almeida, Alberto Alonso-Izquierdo, Rodrigo Fresneda +2

We compute the vacuum fermion current in $(2+1)$ dimensional Jackiw-Rossi model by using the $1/m$ expansion. The current is expressed through a weighted $\eta$-function with a matrix…