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Thermodynamics of small systems through a reversible and conservative discrete automaton

septiembre 1 / 1:15 pm - 2:15 pm

Sergio Rica

Facultad de Ingeniería y Ciencias and UAI Physics Center, Universidad Adolfo Ibáñez


The focus of this talk will be the Q2R model which is a reversible and conservative cellular automaton. The Q2R model possesses quite a rich and complex dynamics. Indeed, the configuration space is composed of a huge number of cycles with exponentially long periods, that we attempt to characterize. Furthermore, a coarse-graining approach is applied to the time series of the total magnetization, leading to a master equation that governs the macroscopic irreversible dynamics of the Q2R automata. The methodology is replicated for various system sizes. In the case of small systems, we show that the master equation leads to a tractable probability transfer matrix of moderate size, which provides a consistent and tractable thermodynamic description. This work is in collaboration with Felipe Urbina and Marco Montalva.

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septiembre 1
1:15 pm - 2:15 pm


Sala Seminarios 3er piso, DFI
Av Blanco Encalada 2008
Santiago, Chile
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