| Popis: |
A systematic comparison is carried out between quantal and classical computer simulations of the excitation of independent particles in a time-dependent potential well undergoing one cycle of oscillation. Eleven values of the diffuseness, up to 25 values of the oscillation frequency, and five Legendre polynomial deformations P 2 , P 3 , P 4 , P 5 , P 6 were examined. Oscillations around the spherical shape as well as around a P 3 deformed shape were considered. The results are compared with the one-body dissipation theory in the form of the wall formula, including corrections for the heating up of the gas, the diffuseness of the surface, the wave-mechanical suppression of dissipation and the reduction in the effective volume available to a quantal gas in a container whose diffuseness is small compared to the particle wavelengths. |
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