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  • 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 of thermodynamics. 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.
  • 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 of thermodynamics. 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. (en)
Title
  • Entropy of a quantum oscillator in a structured environment
  • Entropy of a quantum oscillator in a structured environment (en)
skos:prefLabel
  • Entropy of a quantum oscillator in a structured environment
  • Entropy of a quantum oscillator in a structured environment (en)
skos:notation
  • RIV/00216208:11320/14:10289319!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I
http://linked.open...iv/cisloPeriodika
  • 9
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
  • Thusharabhavan Murali, Jishadkumar
http://linked.open.../riv/druhVysledku
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  • 14736
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/14:10289319
http://linked.open...riv/jazykVysledku
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  • third law of thermodynamics; harmonic noise; quantum dissipation; entropy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • SE - Švédské království
http://linked.open...ontrolniKodProRIV
  • [7CE3FB0BC812]
http://linked.open...i/riv/nazevZdroje
  • Physica Scripta
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 89
http://linked.open...iv/tvurceVysledku
  • Thusharabhavan Murali, Jishadkumar
http://linked.open...ain/vavai/riv/wos
  • 000343578000025
issn
  • 0031-8949
number of pages
http://bibframe.org/vocab/doi
  • 10.1088/0031-8949/89/9/095702
http://localhost/t...ganizacniJednotka
  • 11320
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