Study of the (free) fluctuation correlations (i. e. beyond mean field approximation) in particular in the presence of a field is described. The 'first' propagator, involving only two distinct replicas, was obtained in exact form in the Parisi approximation (near T//c). Results on its IR and UV behavior are presented and compared (in zero field) with the dynamical results of Sompolinsky and Zippelius. The spectrum and the fate of zero modes are discussed.
|Number of pages||6|
|Journal||Journal de physique. Lettres|
|Publication status||Published - Jan 1 1984|
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