Universal attosecond response to the removal of an electron
Universal attosecond response to the removal of an electron
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DOI:
10.1103/physrevlett.94.033901
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发表时间:
2005-01-28
影响因子:
8.6
通讯作者:
Cederbaum, LS
中科院分区:
文献类型:
--
作者:
Breidbach, J;Cederbaum, LS
When an electron is suddenly removed, a universal response of the system is shown to occur on an attosecond (10(-18) s) time scale. During this response time, which lasts about 50 attoseconds, the density of the created hole changes in a characteristic way. Explicit examples are shown. The results are analyzed in terms of the eigenstates of the residual ion and related to the filling of the exchange-correlation hole associated with the electron in the ground state of the system by the remaining electrons.