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Journal Article

Thermodynamic cost of measurements

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Granger,  L.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Kantz,  H.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Granger, L., & Kantz, H. (2011). Thermodynamic cost of measurements. Physical Review E, 84(6): 061110.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-8BA2-2
Abstract
The measurement of thermal fluctuations provides information about the microscopic state of a thermodynamic system and can be used in order to extract work from a single heat bath in a suitable cyclic process. We present a minimal framework for the modeling of a measurement device and we propose a protocol for the measurement of thermal fluctuations. In this framework, the measurement of thermal fluctuations naturally leads to the dissipation of work. We illustrate this framework on a simple two states system inspired by the Szilard's information engine.