2007

Superbosonization formula and its application to random matrix theory

Bunder, J. E., Efetov, K. B., Kravtsov, V. E. et al.

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.

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