Understand
Starting from Gaussian random matrix models we derive a new supermatrix field theory model.
- In contrast to the conventional non-linear sigma models, the new model is applicable for any range of correlations of the elements of the random matrices.
- We clarify the domain of integration for the supermatrices, and give a demonstration of how the model works by calculating the density of states for an ensemble of almost diagonal matrices.
- It is also shown how one can reduce the supermatrix model to the conventional sigma model.
Reading the bibliography…