Schwinger-Dyson equations and disorder

Details Schwinger-Dyson equations and disorder Schwinger-Dyson equations and disorder

2011-06-27

arxiv.org/abs/1106.5528v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 6 figures

Scientific paper

Using simple models in D=0+0 and D=0+1 dimensions we construct partition functions and compute two-point correlations. The exact result is compared with saddle-point approximation and solutions of Schwinger-Dyson equations. When integrals are dominated by more than one saddle-point we find Schwinger-Dyson equations do not reproduce the correct results unless the action is first transformed into dual variables.

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