A Practical Look at Regge Calculus

Dual graph of the symmetric evolution


Regge calculus is the classical starting point for a bunch of different models of quantum gravity. Moreover, it is often considered a finite-element discretization of general relativity, providing so a potential practical scheme for numerical relativity. Despite these important roles, not many sample calculations have been studied. I will present one detailed example which, step-by-step, will show the power and the limits of this model. Many interesting aspects and open problems related to the Lorentzian structure of the discrete system will emerge.

1st Karl Schwarzschild Meeting on Gravitational Physics Volume 170 of the series Springer Proceedings in Physics pp 381-386