On the afternoon of May 26th, the 42nd lecture of the 25th "Dongjian Forum" of the School of Physics and Electronics was held in the F347 lecture Hall, Area A, Wenlan Building, Changqing Lake Campus. This "Eastward Expansion Forum" has specially invited Professor Long Run from Beijing Normal University to give a report. Zhang Chao, the academic vice dean of the college, presided over the report meeting. Nearly a hundred teachers, postgraduate and undergraduate students from relevant majors attended the event.

Professor Long Run delivered an academic report titled "Dynamics of Ultrafast Excited States in Condensed Phase Materials". He focused on the significant role of non-adiabatic effects in the fields of optophysics and photochemistry. Based on various complex interactions such as electron-phonon coupling, spin-orbit coupling and Coulomb coupling, he elaborated in detail on the dynamics of charge and spin relaxation in a series of typical material systems. Furthermore, by further incorporating the non-Condon effect into the non-adiabatic dynamics framework, the scattering mechanism of carriers in the momentum space and its underlying physical essence have been systematically expounded. After the report, Professor Long Run interacted with the teachers and students on the spot, patiently and in detail answering the questions raised by them, deepening the breadth and depth of this academic exchange. The report was warmly welcomed by the teachers and students.

Long Run is a professor at Beijing Normal University. He has been selected as a National high-level overseas Young Talent and is a specially-appointed professor of the Chang Jiang Scholars Program of the Ministry of Education. The research directions are the development of non-adiabatic dynamical methods with multi-degree-of-freedom coupling, as well as theoretical studies on the excited-state dynamics of condensed phase materials. To date, more than 200 papers have been published as the first or corresponding (including co-author) in journals such as J. Am. Chem. Soc. (23 papers), Angew. Chem. Int. Ed. (3 papers), Chem (1 paper), and Nano Lett. (10 papers). Currently serves as the associate editor of the international journal J. Phys. Chem. Lett.