Temperature Corrections to Conformal Field Theory
  We consider finite temperature dynamical correlation functions in the interacting delta-function Bose gas. In the low-temperature limit the asymptotic behaviour of correlation functions can be determined from conformal field theory. In the present work we determine the deviations from conformal behaviour at low temperatures. 
Fabian H. L. Essler, Vladimir E. Korepin, Franck T. Latremoliere