期刊
JOURNAL OF CHEMICAL PHYSICS
卷 134, 期 9, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3556940
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资金
- Deutsche Forschungsgemeinschaft [Ne 873/3-1]
In this paper, we present benchmark results for dissipative dynamics of a harmonic oscillator coupled to an anharmonic bath of Morse oscillators. The microscopic Hamiltonian has been chosen so that the anharmonicity can be adjusted as a free parameter, and its effect can be isolated. This leads to a temperature dependent spectral density of the bath, which is studied for ohmic and lorentzian cases. Also, we compare numerically exact multiconfiguration time-dependent Hartree results with approximate solutions using continuous configuration time-dependent self-consistent field and local coherent state approximation. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3556940]
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