Abstract:
We show that the paramagnet–spin glass transition can be described in the
Edwards–Anderson model using critical-dynamics methods and taking the
ultrametric topology of the temporal space into account. In the framework of
the suggested approach, we derive the Vogel–Fulcher relation for the system
relaxation time. We prove that the fluctuation-dissipation theorem holds for
the given model if there is no relaxation-time hierarchy.