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arXiv · 1905.08854

Thermodynamic uncertainty relations in a linear system

Deepak Gupta·Amos Maritan
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Abstract

We consider a Brownian particle in harmonic confinement of stiffness $k$, in one dimension in the underdamped regime. The whole setup is immersed in a heat bath at temperature $T$. The center of harmonic trap is dragged under any arbitrary protocol. The thermodynamic uncertainty relations for both position of the particle and current at time $t$ are obtained using the second law of thermodynamics as well as the positive semi-definite property of the correlation matrix of work and degrees of freedom of the system for both underdamped and overdamped cases.

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Deepak Gupta, Amos Maritan. 2020-01-14. Thermodynamic uncertainty relations in a linear system. https://doi.org/10.1140/epjb%2Fe2020-10019-4

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