Optimized perturbation method for the propagation in the anharmonic oscillator potential
نویسنده
چکیده
The application of the optimized expansion for the quantum-mechanical propagation in the anharmonic potential λx4 is discussed for real and imaginary time. The first order results in the imaginary time formalism provide approximations to the free energy and particle density which agree well with the exact results in the whole range of temperatures. PACS: 03.65.-w 05.30.-d keywords: quantum mechanics, anharmonic oscillator, optimized expansion, variational perturbation method, time evolution amplitude, particle density
منابع مشابه
Optimized perturbation methods for the free energy of the anharmonic oscillator
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تاریخ انتشار 2008