Entropy of a quantum oscillator in a structured environment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10289319" target="_blank" >RIV/00216208:11320/14:10289319 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0031-8949/89/9/095702" target="_blank" >http://dx.doi.org/10.1088/0031-8949/89/9/095702</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0031-8949/89/9/095702" target="_blank" >10.1088/0031-8949/89/9/095702</a>

Result language
angličtina
Original language name
Entropy of a quantum oscillator in a structured environment
Original language description
Entropy of a quantum oscillator in the presence of a quantum environment (or heat bath) is studied here. The spectral density, which comprises the environmental influences, here corresponds to a quasi-monochromatic thermal harmonic noise. This further implies that the environment is a structured one compared to the usually employed unstructured strictly ohmic environment. The entropy is found to be vanishing as the temperature approaches its absolute zero value, which thereby guarantees the third law ofthermodynamics. At very high temperatures the classical behavior is observed. Similar to the usually employed ohmic-Drude bath model, the coefficient of the leading temperature dependent term in the entropy (at low temperatures) is proportional to the damping strength but not on other parameters of the spectral density characterising the bath.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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