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The Third Law of Quantum Thermodynamics in the Presence of Anomalous Couplings |
| WANG Chun-Yang;BAO Jing-Dong |
| Department of Physics, Beijing Normal University, Beijing 100875 |
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| Cite this article: |
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WANG Chun-Yang, BAO Jing-Dong 2008 Chin. Phys. Lett. 25 429-432 |
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Abstract The quantum thermodynamic functions of a harmonic oscillator coupled to a heat bath through velocity-dependent coupling are obtained analytically. It is shown that both the free energy and the entropy decay fast with the
temperature in relation to that of the usual coupling from. This implies that the velocity-dependent coupling helps to ensure the third law of thermodynamics.
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| Keywords:
05.70.Ce
05.30.-d
05.40.Ca
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Received: 03 November 2007
Published: 30 January 2008
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| PACS: |
05.70.Ce
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(Thermodynamic functions and equations of state)
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05.30.-d
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(Quantum statistical mechanics)
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05.40.Ca
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(Noise)
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