Wednesday weekly meeting

Wednesday 31 Jan 2024, 11:00 → 12:00 Asia/Tehran

Gholamhossein Haghighat (IPM)

General weekly meeting of the school of particles and accelerators (hybrid format)

• Meeting Place: Seminar Room, School of Particles and Accelerators, IPM
• Link to join virtually: https://meet.google.com/fnv-dfkk-ghb

11:00 → 12:00 Induced Gravitational Waves from Non-attractor Inflation and NANOGrav data

In this seminar, I will discuss scalar-induced gravitational waves within the context of single-field non-attractor inflation, focusing on their implications for the Pulsar Timing Arrays data. The model under consideration encompasses three distinct phases of inflation: the first and third phases correspond to slow-roll inflation, while the second phase represents a period of non-attractor inflation. I will present the model's predictions for different values of the sound speed and explore its implications for NANOGrav observations as well as future gravitational wave detection. Join me as we delve into the intriguing world of scalar-induced gravitational waves and their significance in our understanding of the early universe.

Speaker: Dr Amin Nassiriraad (School of Astronomy, IPM)