Alexei L. Ivanov School of Physics and Astronomy Cardiff University Employment History: Research staff member of Physics Department of Moscow State University, 1984-1991 Research associate of Institute for Theoretical Physics, University of Frankfurt am Main, 1991-1997 Research associate of Theory Condensed Matter Group, Cavendish Laboratory, Department of Physics, University of Cambridge, 1998-1999 Senior Lecturer, Department of Physics and Astronomy, Cardiff University, 1999-2003 Personal Chair - Professor, School of Physics and Astronomy, Cardiff University, 2003 - present time. Sergei G. Tikhodeev A M Prokhorov General Physics Institute Russian Academy of Sciences Moscow Employment History: Since 1997, Head of Nanostructures theory laboratory, A. M. Prokhorov General Physics Institute RAS, Moscow, Russia 1988 - 1996, Leading Scientist, General Physics Institute 1983 - 1988 Senior Scientist, General Physics Institute 1975 - 1983 Research Associate, I.E.Tamm Theory Department, P.N. Lebedev Physical Institute AS USSR, Moscow