Role of the Bath Spectrum in the Specific Heat Anomalies of a Damped Oscillator
BAI Zhan-Wu**
Department of Mathematics and Physics, North China Electric Power University, Baoding 071003
Role of the Bath Spectrum in the Specific Heat Anomalies of a Damped Oscillator
BAI Zhan-Wu**
Department of Mathematics and Physics, North China Electric Power University, Baoding 071003
Abstract ：The specific heat anomalies are analytically studied in the system in which a harmonic oscillator couples to a heat bath with harmonic noise. The physical explanation leads to a general spectral dependence of the specific heat anomalies. The condition of a dip appearance and the behaviors of the dip can be given according to the shape of the bath's power spectrum by employing the minimal heat bath model.
Key words ：
05.40.-a
05.30.Ch
05.70.Ce
收稿日期: 2012-01-21
出版日期: 2012-05-31
:
05.40.-a
(Fluctuation phenomena, random processes, noise, and Brownian motion)
05.30.Ch
(Quantum ensemble theory)
05.70.Ce
(Thermodynamic functions and equations of state)
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2012, Vol. 29 
