Entropy Rate of Thermal Diffusion
The thermal diffusion of a free particle is a random process and generates entropy at a rate equal to twice the particle's temperature, (in natural units of information per second). The rate is calculated using a Gaussian process with a variance of which is a combination of quantum and classica...
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Veröffentlicht in: | Journal of modern physics 2013-10, Vol.4 (10), p.1393-1399 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The thermal diffusion of a free particle is a random process and generates entropy at a rate equal to twice the particle's temperature, (in natural units of information per second). The rate is calculated using a Gaussian process with a variance of which is a combination of quantum and classical diffusion. The solution to the quantum diffusion of a free particle is derived from the equation for kinetic energy and its associated imaginary diffusion constant; a real diffusion constant (representing classical diffusion) is shown to be . We find the entropy of the initial state is one natural unit, which is the same amount of entropy the process generates after the de-coherence time, . |
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ISSN: | 2153-1196 2153-120X |
DOI: | 10.4236/jmp.2013.410167 |