سمینار هفتگی گروه کیهانشناسی

On Primordial Gravitational Waves Evolution

مریم آقایی (دانشکده فیزیک دانشگاه صنعتی شریف )

 

Abstract:  Gravitational waves are exciting messengers for the history of the universe as they travel through the space with the speed of light, and have almost no interaction. These valuable messengers can be originated in the early universe or in emerging heavy objects like black holes. Primordial gravitational waves are the direct results of primordial tensor perturbation, applied to the metric which describes our universe. While traveling toward us, these waves experience different cosmological epochs. As the cosmological epochs (namely Inflation, reheating, radiation  dominated and matter dominated) are the background for the primordial gravitational waves, they have significant effects on the GWs evolution. In this talk I will speak about the primordial gravitational waves equation of motion and its solutions in different epochs. We will keep this question in our mind that: are they detectable?

یکشنبه 12 آبان 1398، ساعت 15:00

دانشکده فیزیک، طبقه اول کلاس فیزیک 3

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