Abstract
We discuss the static and dynamical properties of a model of short range attractivecolloidal systems. Our model is a binary mixture of particles interacting with a modifiedLennard-Jones potential that we simulated by molecular dynamics. As previously found, weconfirm the existence of a maximum in diffusivity on varying the temperature at constanthigh density. The possibility to characterize such a maximum by studying the properties ofthe potential energy landscape (PEL) is also discussed. This has been achieved bycalculating the configurational entropy following two independent methods. It is shownthat this quantity presents a maximum in correspondence with that of diffusivity.
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