Séminaire de Physique Théorique

Thermostatting the atomic spin dynamics from controlled demons
David Beaujouan (CEA)
Thursday 06 October 2011 14:00 -  Tours -  Salle 1180 (Bât E2)

Résumé :
Deterministic dynamics in extended phase space of a constant temperature interacting spin system is formulated. The spin temperature is recovered thought constrained equation of motion and is in agreement of Rugh's geometrical approach to temperature for classical Heisenberg spin systems. Detailed comparisons are investigated between state-of-the-art stochastic spin dynamics and deterministic dynamics using a chain of thermostats, for which an accelerated convergence structure is found.

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