%0 Journal Article
%A Malyshev, Andrey
%A Knoeste, J.
%T Probing quantum-mechanical level repulsion in disordered systems by means of time-resolved selectively excited resonance fluorescence
%D 2007
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/52167
%X We argue that the time-resolved spectrum of selectively-excited resonance fluorescence at low temperature provides a tool for probing the quantum-mechanical level repulsion in the Lifshits tail of the electronic density of states in a wide variety of disordered materials. The technique, based on detecting the fast growth of a fluorescence peak that is redshifted relative to the excitation frequency, is demonstrated explicitly by simulations on linear Frenkel exciton chains.
%~