[Todos] Coloquios del Departamento de Física: Visita del Profesor Michael Berry

[Gabi Pasquini]

              COLOQUIOS DEL DEPARTAMENTO DE FÍSICA
                                            FCEyN - UBA

                                    Charla, café y masitas
                             En el Aula 9, 1er piso Pabellón I.
                                  Ciudad Universitaria


                    El próximo  jueves 2 de noviembre  a las 14 hs 

                               Conical diffraction: 
                    Imaging Hamilton´s diabolical point   
                           
                                           Michael Berry
                            Physics Department, Bristol University
                                                  
-----------------------------------------------------------------------------------------------------------------------------------------------


RESUMEN:
  
The transformation of a narrow beam into a hollow cone when incident  along the optic axis 

of a biaxial crystal, predicted by Hamilton in  1832, created a sensation when observed by 

Lloyd soon afterwards. It was the prototype of the conical intersections now popular in quantum 

chemistry. But the fine structure of the light cone contains many subtle features, slowly revealed 

by experiment, whose definitive explanation, involving new mathematical asymptotics, has been 

achieved only recently, along with definitive experimental test of the theory. Radically different 

phenomena, being intensively studied now, arise when chirality and absorption are incorporated 

in addition to biaxiality.



-------------------------------------------------------------------------------------------------



Los esperamos!

------------ próxima parte ------------
Se ha borrado un adjunto en formato HTML...
URL: http://mail.df.uba.ar/pipermail/todos/attachments/20061030/91d794af/attachment.html