“Perturbative QED on de Sitter Universe” lecture by Cosmin Crucean in Nis

Faculty of Physics University of Craiova, Romania and Faculty of Science and Mathematics, Nis (Department of Physics, Chair of Theoretical Physics and Center for Theoretical Physics), through the SEENET-MTP – UNESCO-BRESCE Project “Training and Mobility Program. Promotion of exellence and growing of the youth’s interest for education in Physics and Mathematics” organize a lecture:


Lecturer is Cosmin Crucean (Theoretical and Applied Physics, West University of Timisoara, Romania). Lectures will be held on Friday July 9, 2010 in the Room 100, at the Faculty of Science and Mathematics Nis at 2.00pm.

Abstract: The theory of interaction between fields on de Sitter universe is developed using the same methods as in Minkowski theory. The scattering amplitudes in the first order of perturbation theory are calculated and the physical consequences of our result are discussed. One obtains that contrary with Minkowski case the modulus of momentum is not conserved.

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