Landauer erasure for quantum systems

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Date

2009

Author

Aksak, Çağan

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Maxwell’s thought experiment on a demon performing microscopic actions and violating the second law of thermodynamics has been a challenging paradox for a long time. It is finally resolved in the seventies and eighties by using Landauer’s principle, which state that erasing information is necessarily accompanied with a heat dumped to the environment. The purpose of this study is to describe the heat dumped to the environment associated with erasure operations on quantum systems. To achieve this, first a brief introduction to necessary tools like density matrix formalism, quantum operators and entropy are given. Second, the Maxwell’s demon and Szilard model is described. Also the connection between information theory and physics is discussed via this model. Finally, heat transfer operators associated with quantum erasure operations are defined and all of their properties are obtained.

Subject Keywords

Physics., Thermodynamics.

URI

http://etd.lib.metu.edu.tr/upload/2/12611047/index.pdf
https://hdl.handle.net/11511/18860

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

Ç. Aksak, “Landauer erasure for quantum systems,” M.S. - Master of Science, Middle East Technical University, 2009.