Mar 26 – 28, 2014
Nordita, Stockholm
Europe/Stockholm timezone

Entropy production and fluctuation relations in non-Markovian systems

Mar 27, 2014, 9:45 AM
45m
132:028 (Nordita, Stockholm)

132:028

Nordita, Stockholm

Speaker

Tapio Ala-Nissilä (Aalto University School of Science)

Description

Fluctuation relations provide a powerful formalism to study the stochastic nature of fluctuating thermodynamic variables, such as (free) energy, entropy, heat and work in small systems driven beyond the linear response regime. Most of the work done to date in this field has been done within the context of the Markovian approximation, where the system has no memory of its previous states. However, it is easy to argue that in reality many interacting systems become non-Markovian when driven out of equilibrium. I will present some new results for the fluctuation relations, and entropy, heat and work production in a system of driven single-electron transitions (the "single-electron box"), which becomes non-Markovian due to excess heat dissipation [1], or which can be driven to a steady-state non-equilibrium state [2]. I will also discuss the relationship between different sources of entropy generation in non-Markovian systems using the driven SEB as a benchmark [3]. [1] J.P. Pekola, A. Kutvonen, and T. A-N., JSTAT P02033 (2013). [2] J.V. Koski, T. Sagawa, O-P. Saira, Y. Yoon, A. Kutvonen, P. Solinas, M. Möttönen, T.A-N., and J.P. Pekola, Nat. Phys. 9, 644 (2013). [3] A. Kutvonen, J.P. Pekola, and T. A-N., unpublished (2014).

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