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Thanks to impressive data collected from numerous
observations during past two decades, cosmology has entered into it
precision era. Cosmologists already invented their ``Standard
Model'', called Lambda-CDM, which is able to fit a host of
cosmological observations with impressive agreements. However,
Lambda-CDM is still at the phenomenological level where its free
parameters are fixed by hand without a deep theoretical
understanding.
Here are some important questions which theoretical
cosmologists are facing todays:
- Did inflation happen in early universe and how?
- Can inflation be replaced by alternatives?
- How did matter-antimatter asymmetry take place (Baryogenesis)?
- Are there other relics such as cosmic strings to be detected?
- How were large scale structures generated? How did they evolve
(Structure
Formation)?
- What is dark matter?
- What is dark energy?
The members of Early Universe Cosmology group at IPM Physics
school are currently working on topics such as inflation and
alternatives, cosmic strings and related ideas. One main goal is how
to obtain inflation from a fundamental theory of high energy physics
such as string theory and test it with observations.
People active in the cosmology group of IPM:
Full Time:
Hassan Firouzjahi
Part Time:
Salome
Khoeini-Moghaddam
Student:
Ali Akbar Abolhasani
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