1978: PhD on Quantum chemistry of processes on solid surfaces.
1982-1989 Assistant Professor in Theoretical Chemistry, University of Sofia, Department of Chemistry.
1982-1984: ''Anton Kalojanov'' Fellowship, LMU Muenchen. Collaboration on problems of gas atom adsorption and scattering on solid surfaces with Gerhard Ertl and Gerold Doyen.
1990: Associate Professor in Theoretical Chemistry, University of Sofia, Department of Chemistry.
1990-1992: Max Planck Fellowship, Fritz Haber Institut der DPG, Berlin. Collaboration on the development of the theory of scanning tunnelling microscopy with Gerhard Ertl, Gerold Doyen and Matthias Scheffler.
1996: DAAD Fellowship, LMU Muenchen. Collaboration on the development of the theory of STM, STS and AFM with Gerold Doyen.
1999: Guest scientist of the Graduate College on ''Dynamic Processes on Solid Surfaces'', Ruhr-Universitaet Bochum.
2000 till the present day: regular visits in LMU Muenchen. Collaboration on the development of the theory of Emerging quantum mechanics with Gerold Doyen.
2012 Dr Habil on ''Quantum nanodynamics for processes on solid surfaces''.