Centro de Excelencia Severo Ochoa
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Sala de Conferencias, Modulo 00 (C-0), Facultad de Ciencias
Jamming is a well know phenomenon that you have experienced when the traffic is very heavy. You cannot move because your neighbors block you and your neighbors cannot move because you block them. Jamming is a collective phenomenon. Marble pebbles on the beach are one example of jamming. However also for well-levigated pebbles, friction will plays an important role. Statistical mechanics may be used to study the case of systems without friction. The most studied case is the hard sphere gas where the jamming point is reached in the limit of infinite pressure. In the case of frictionless jamming long-range correlations are present: we have a new kind of critical system, whose properties have been carefully studied.