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Departamento de Gravitación y Teoría de CamposSeminarios 2010 |
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Instituto de Ciencias Nucleares, UNAM |
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Departamento de Gravitación y Teoría de CamposSeminarios 2010 |
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Instituto de Ciencias Nucleares, UNAM |
Jueves 17 de Junio, a las 17:30 hrs en el Auditorio Principal del ICN
Krzysztof Bolejko (Centro Astronomico Nicolas Copernico, Varsovia)
Pre-inflationary homogenization of the Universe
| The present-day Universe appears to be homogeneous on very large scales. Yet when the casual structure of the early Universe is considered, it becomes apparent that the early Universe must have been highly inhomogeneous. The current paradigm attempts to answer this problem by postulating the inflation mechanism. However, inflation in order to start requires a homogeneous patch of at least the horizon size. Its seems therefore that a set of initial conditions that leads to inflation is of measure zero which makes inflation a very spacial and rather improbable event. During the talk I will discuss how dynamical processes of the early Universe could lead to pre-inflationary homogenization making the set of initial conditions for inflation of non-zero measure. |
