The excitation of an independent-particle gas by a time-dependent potential well: Part II

✍ Scribed by J. Blocki; J. Skalski; W.J. Swiatecki

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 837 KB
• Volume: 618
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(97)00017-1

✦ Synopsis

A systematic comparison is carded 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 P2, P3, P4, Ps, 1°6 were examined. Oscillations around the spherical shape as well as around a 1°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.