|Title:||Thermodynamics of the molecular polaron|
|Other Titles:||the transition to self-trapping|
|Abstract:||The thermodynamics of the molecular polaron model-a two-level system coupled to a harmonic oscillator-is studied. Close upper and lower bounds to the free energy are derived by means of Tchebycheff-Markov inequalities and are compared with the results of other authors. The 'nearly free' behaviour for high temperatures is confirmed. The self-trapping effects at low temperatures are weaker than predicted earlier. In contrast to the prediction of mean-field theory, the transition between the two temperature regimes is not a sharp phase transition but rather a smooth crossover.|
|Provenance:||The Institute of Physics|
|Citation:||Brandt, Uwe; Stolze, Joachim: Thermodynamics of the molecular polaron : the transition to self-trapping. In: Journal of Physics C Nr. 29, Jg. 16(1983), S. 5617-5627, doi: 10.1088/0022-3719/16/29/015.|
|Appears in Collections:||Stolze, Joachim Prof. Dr.|
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