RT info:eu-repo/semantics/article
T1 Soliton fermionic number from the heat kernel expansion
A1 Alonso Izquierdo, Alberto
A1 Fresneda, Rodrigo
A1 Mateos Guilarte, Juan
A1 Vassilevich, D.
AB 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 spectral asymmetry and compute the fermion number in amulti flavor extension of the Goldstone–Wilczek model. We also propose an improved expansion of the heatkernel that allows the tackling of the convergence issues and permits an automated computation of the coefficients.
SN 1434-6044
YR 2019
FD 2019
LK http://uvadoc.uva.es/handle/10324/40096
UL http://uvadoc.uva.es/handle/10324/40096
LA eng
NO Eur. Phys. J. C 79 (2019) 525.
NO Producción Científica
DS UVaDOC
RD 24-abr-2024