Rabi oscillations and few-level approximations in time-dependent density functional theory
M Ruggenthaler, D Bauer - Physical review letters, 2009 - APS
Physical review letters, 2009•APS
The resonant interaction of laser light with atoms is analyzed from the time-dependent
density functional theory perspective using a model helium atom which can be solved
exactly. It is found that in the exact exchange approximation the time-dependent dipole
shows Rabi-type oscillations of its amplitude. However, the time-dependent density itself is
not well described. These seemingly contradictory findings are analyzed. The Rabi-type
oscillations are found to be essentially of classical origin. The incompatibility of time …
density functional theory perspective using a model helium atom which can be solved
exactly. It is found that in the exact exchange approximation the time-dependent dipole
shows Rabi-type oscillations of its amplitude. However, the time-dependent density itself is
not well described. These seemingly contradictory findings are analyzed. The Rabi-type
oscillations are found to be essentially of classical origin. The incompatibility of time …
The resonant interaction of laser light with atoms is analyzed from the time-dependent density functional theory perspective using a model helium atom which can be solved exactly. It is found that in the exact exchange approximation the time-dependent dipole shows Rabi-type oscillations of its amplitude. However, the time-dependent density itself is not well described. These seemingly contradictory findings are analyzed. The Rabi-type oscillations are found to be essentially of classical origin. The incompatibility of time-dependent density functional theory with few-level approximations for the description of resonant dynamics is discussed.
American Physical Society以上显示的是最相近的搜索结果。 查看全部搜索结果