J. Phys. I France
Volume 4, Numéro 12, December 1994
Page(s) 1819 - 1827
DOI: 10.1051/jp1:1994109
J. Phys. I France 4 (1994) 1819-1827

Saddle points stability in the replica approach off equilibrium

M.E. Ferrero and M.A. Virasoro

Dipartimento di Fisica, Università di Roma, La Sapienza, I-00185 Roma, Italy INFN Sezione di Roma I, Roma, Italy

(Received 28 April 1994, received in final form 5 August 1994, accepted 12 August 1994)

We study the replica free energy surface for a spin glass model near the glassy temperature. In this model the simplicity of the equilibrium solution hides non trivial metastable saddle points. By means of the stability analysis performed for one and two real replicas constrained, an interpretation for some of them is achieved

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