[AAA] Seminario Virtual Room DAS - UChile; ; The effect of gravity on light propagation beyond eikonal approximation

[Rene A. Mendez]

Estimado/as,

Les recuerdo que el Jueves 01 de Julio a las 12:15 hrs, tendremos 
seminario en el Departamento de Astronomía de la Universidad de Chile.
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*Speaker*: Felipe Asenjo Zapata
Facultad de Ingeniería y Ciencias
Universidad Adolfo Ibáñez

*Title*: The effect of gravity on light propagation beyond eikonal 
approximation

*Abstract*: Gravity interacts with light by, for instance, curving its 
trajectory or shifting its frequency. These are the well-known 
gravitational lensing and cosmological redshift effects. However, on the 
calculation of such effects it is used the eikonal approximation. This 
models light as a massless particle travelling in ray paths. When we go 
beyond that approximation, new effects emerge because the extended 
(wave) nature of light. In this talk, we will discuss how curved 
spacetimes can couple to polarization of electromagnetic waves, or even 
modify its propagation to non-null geodesics.

Virtual room: 
https://uchile.zoom.us/j/89046359858?pwd=dURFTjIzbXU0NkNpdGFZb0sxRVZJdz09 
<https://uchile.zoom.us/j/89046359858?pwd=dURFTjIzbXU0NkNpdGFZb0sxRVZJdz09>

Rene A. Mendez
Seminar Coordinator
DAS/UChile - rmendez en uchile.cl <mailto:rmendez en uchile.cl>

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-- 
Saludos,

Alejandro Leal Obreque
Departamento de Astronomía
FCFM - UNIVERSIDAD DE CHILE
22 977 1154
aleal en das.uchile.cl <mailto:aleal en das.uchile.cl>
www.das.uchile.cl <http://www.das.uchile.cl/>



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