[Astro] [CAPT] CAPT Weekly Bulletin (w/c 22-04-25)

[Ella Batchelor]

Tuesdays at 11am, CAPT Foyer – Astro Coffee
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Thursday 24th April at 3pm, A113 CAPT – Particle Cosmology and Gravity Seminar

Dong-Gang Wang (Hong Kong University of Science and Technology)

New Twists on Cosmological Bootstrap: Theory & Observations



In recent years, our theoretical understanding on the statistics of primordial fluctuations has improved significantly. In particular the cosmological bootstrap program provides a new perspective toward the investigation of cosmological correlators at the end of inflation. In this talk, I will first briefly review the progresses on bootstrapping phenomenologically relevant correlators, which include the primordial bispectra from single field, multi-field and cosmological colliders. After that, I will introduce new twists on both the theoretical development and also the observational tests. On the theory side, we extend the bootstrap analysis to reexamine more realistic inflation models in UV-complete setups. Interestingly, for a particular example of string inflation, we identify an unnoticed UV-sensitive signature in cosmological correlators. For observational test, guided by the bootstrap computation, we initiate a comprehensive search for the most significant signal of cosmological collider physics in the latest CMB data.


Link to join: https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d

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Fridays at 4pm, CAPT Foyer – CAPT Cakes

Friday 25th April at 4.30pm – Djanogly Gallery -  Cosmic Titans: Closing Celebration
Free – Running Time 2.5 hours
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If you have any events/visitors you would like included in next week’s bulletin, please let me know.

Best wishes

Ella

Ella Batchelor
Administrator

Working Hours: Mon-Fri, 8:15am – 4pm
School of Physics & Astronomy

University of Nottingham
A112a Centre for Astronomy & Particle Theory
University Park
Nottingham, NG7 2RD

+44 (0) 115 74 86778 |  nottingham.ac.uk<http://nottingham.ac.uk/>

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