HORIZON THERMODYNAMICS IN FRW SPACE-TIMES
In the past years, the Hamilton-Jacobi method of tunnelling has proved to be a reliable tool to compute surface gravities and Hawking temperatures for a large number of black hole horizons, both static and dynamic ones,1–5 but much less is known about the class of horizons of cosmological interest. The present discussion is devoted to fill the gap and provide evidence of thermodynamic properties associated with these horizons.