Generalized Zeta Functions and One-loop Corrections to Quantum Kink   Masses
  A method for describing the quantum kink states in the semi-classical limit of several (1+1)-dimensional field theoretical models is developed. We use the generalized zeta function regularization method to compute the one-loop quantum correction to the masses of the kink in the sine-Gordon and cubic sinh-Gordon models and another two ${\rm P}(\phi)_2$ systems with polynomial self-interactions. 
A. Alonso Izquierdo (U. Salamanca), W. Garcia Fuertes (U. Oviedo),   M.A. Gonzalez Leon (U. Salamanca) and J. Mateos Guilart...