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Informal Pizza SeminarStrings in Gravimagnetic FieldsKonstantin SavvidisPerimeter InstituteI present a picture of closed strings propagating a pp-wave supported by NS flux, or torsion. Based on the analysis of geodesics we construct the coherent wavefunctions which approximate as closely as possible the classical trajectories. The role of spacetime isometries in finding the correct vertex operators is elucidated. Finally, I will present the three- and four-point tachyon scattering amplitude and discuss the physical consequences.
Tuesday, October 21st 2003, 13:00
Ernest Rutherford Physics Building, room 326 |