TY  - JOUR 
AU  - Alonso Izquierdo, Alberto
AU  - Fresneda, Rodrigo
AU  - Mateos Guilarte, Juan María
AU  - Vassilevich, D.
PY  - 2019
SN  - 1434-6044
UR  - http://hdl.handle.net/10366/146565
AB  - [EN] We consider different methods of calculating the (fractional) fermion number of solitons based on the heat kernel expansion. We derive a formula for the localized 𝜂 function that provides a more systematic version of the derivative expansion for...
LA  - eng
KW  - Fermion number of solitons
KW  - Heat kernel expansion
KW  - Spectral asymmetry
KW  - Goldstone–Wilczek model
TI  - Soliton fermionic number from the heat kernel expansion
DO  - 10.1140/epjc/s10052-019-7041-8
T2  - The European Physical Journal C
VL  - 79
ER  -