How Can the Statistical Properties of Cosmic Structures Be Calculated with Simple Physical Laws?.

Format:

Video

Series:

Academic Video Online

Language:

English

Physical Description:

1 online resource (12 minutes)

Place of Publication:

[Place of publication not identified] : Latest Thinking, [date of publication not identified]

System Details:

video file

Summary:

So far, the understanding we have of cosmic structures comes from numerical simulations. As MATTHIAS BARTELMANN explains in this video, his research group has developed a different method to calculate the statistical properties of cosmic structures in order to better understand why they evolve in the way they do. The researchers employed concepts of statistical field theory and could therefore use much simpler dynamical equations. They applied this new approach to describe the power spectrum of cosmic structures, i.e. the degree to which cosmic matter clusters. They thus obtained the same results as the numerical simulations, but in a much simpler way that saves considerable amounts of computation time, reducing it from months to a matter of seventy seconds. This will allow researchers to gain a much better understanding of the formation of cosmic structures in a feasible amount of time.

Notes:

Title from resource description page (viewed August 24, 2020).