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. 2005 Jan 28;94(3):033901.
doi: 10.1103/PhysRevLett.94.033901. Epub 2005 Jan 24.

Universal attosecond response to the removal of an electron

J Breidbach  1 , L S Cederbaum
Affiliations

Universal attosecond response to the removal of an electron

J Breidbach et al. Phys Rev Lett. .

Abstract

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.

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