Electronic Excitations in the Condensed Phase
20 Feb 2018
- Leonardo Bernasconi (HEC-MCC)



The interaction of electromagnetic radiation (visible light, UV and IR radiation, X-rays, etc.) with matter is governed by the rules of quantum mechanics.




When a photon incident on a sample is absorbed, one or more electrons are excited from their equilibrium state in normal conditions, the ground state Ψ0, to one of the system’s electronically excited states Ψn. The character of the excited state can be quite different from the ground state, e.g. in the way atoms are arranged or in its response to external perturbations. The ability to account quantitatively for the physics of electronic excitations is important for the interpretation of experimental spectroscopic data and for the prediction of complex phenomena occurring in catalytic processes, solar energy conversion and radiation damage in materials and biological systems, like proteins and DNA in living cells.

Full case-study

Contact: O'Sullivan, Marion (STFC,RAL,SC)