Thermal instanton determinant in compact form

Chris. P. Korthals Altes, Alfonso Sastre
2014 Physical Review D  
The thermal instanton determinant for the gauge group SU(2) can be reduced to a form involving two simple functions. Various boundary conditions can easily incorporated. Only a two dimensional integral has to be done numerically. As an example we compute the contribution to the free energy of N=1 theory.
doi:10.1103/physrevd.90.125002 fatcat:af6rzamsq5affotefmcppf77nu