%0 Journal Article
%T On the X-Ray Edge Problem in Graphene
%A Eugene Kogan
%A Moshe Kaveh
%J Graphene
%P 1-7
%@ 2169-3471
%D 2018
%I Scientific Research Publishing
%R 10.4236/graphene.2018.71001
%X <div style=\"text-align:justify;\">
	We calculate the core-hole spectral density in a pristine graphene, where the density of states of itinerant electrons goes linearly to zero at the Fermi level. We consider explicitly two models of electron-hole interaction. In the unscreened Coulomb interaction model, the spectral density is similar to that in metal (for local interaction). Thus there is no ¦Ä-function singularity in the core-hole spectral density. In the local interaction model, the ¦Ä-function singularity survives, but the interaction leads to the appearance of the background in the spectral density.
</div>
%K Graphene
%K Dynamical Response
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=82121