The thermodynamic cost of measurements

Details The thermodynamic cost of measurements The thermodynamic cost of measurements

2011-12-02

arxiv.org/abs/1112.0462v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

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.

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