Fluctuations of density in De Sitter Space

Thread starter Gars
Start date Sep 11, 2014
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Density Fluctuations Space

In summary, De Sitter Space is a mathematical model used to describe an expanding universe with a constant positive curvature. Fluctuations of density in this space are primarily caused by quantum fluctuations and can be observed indirectly through the cosmic microwave background radiation. These fluctuations play a crucial role in the formation of structures in the universe and follow a statistical distribution. However, on a large scale, the distribution is relatively smooth and uniform.

Sep 11, 2014

Gars

Please, can anyone help to analyse fluctuations of density in De Sitter Space in case of long waves?
Formulas and Solutions are welcome.

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Sep 12, 2014

bapowell

Science Advisor

Insights Author

Can you be more specific? As it stands, the answer to your question will fill volumes.

Related to Fluctuations of density in De Sitter Space

1. What is De Sitter Space?

De Sitter Space is a mathematical model used in cosmology to describe an expanding universe with a constant positive curvature. It is named after the Dutch mathematician Willem de Sitter.

2. What causes the fluctuations of density in De Sitter Space?

The fluctuations of density in De Sitter Space are primarily caused by quantum fluctuations, which arise from the uncertainty principle in quantum mechanics. These fluctuations can also be influenced by the presence of matter and energy in the universe.

3. Can fluctuations of density in De Sitter Space be observed?

Yes, fluctuations of density in De Sitter Space can be observed indirectly through the cosmic microwave background radiation (CMB). The CMB is a remnant of the early universe and contains small fluctuations in temperature, which correspond to fluctuations in density.

4. How do fluctuations of density affect the evolution of the universe in De Sitter Space?

The fluctuations of density in De Sitter Space play a crucial role in the formation of structures such as galaxies and clusters of galaxies. These fluctuations provide the initial seeds for the growth of structures through gravitational attraction.

5. Are fluctuations of density in De Sitter Space uniform?

No, fluctuations of density in De Sitter Space are not uniform. They are random and follow a statistical distribution, with some regions having higher or lower density compared to the average. However, on a large scale, the overall distribution of fluctuations is relatively smooth and uniform.