[Astro] [CAPT] CAPT Weekly Bulletin (w/c 16-09-24)

[Ella Batchelor]

Tuesdays at 11am, CAPT Foyer – Astro Coffee



Tuesday 17th September, A113 CAPT at 1pm – Particle Cosmology Seminar


Andreas Ekdstedt (DESY, Hamburg)
From EFTs to real-time dynamics and back again

In this talk I discuss how classical real-time dynamics emerges at high temperatures. In particular I discuss the importance of effective-field theory techniques for making accurate predictions in heavy-ion collisions and in various cosmological settings. Finally, I discuss how these considerations directly leads to real-time simulations, which in turn allows us to test perturbation theory for phase transitions, tunnelling, inflation, and much more.

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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Thursday 19th September, A113 CAPT at 3pm – Particle Cosmology Seminar
Xavier Pritchard (University of Sussex)
Early universe degrees of freedom and primordial black holes

In this seminar, I will begin by discussing primordial black holes (PBHs). I will walk through a typical abundance calculation, which I will hopefully convince the audience is mainly dependent on two early universe quantities: the curvature power spectrum and relativistic degrees of freedom. Through this calculation, we will see how the standard model can have an impact on PBH abundances, which I will then try and quantify.  In the second part of the seminar (and time permitting), I will talk about degrees of freedom beyond the standard model as well as scalar fields, which will be tied back to PBHs.

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

Fridays at 4pm, CAPT Foyer – CAPT Cakes
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VISITORS
Andreas Ekstedt from DESY, Hamburg will be visiting Oliver Gould for the whole week.

Xavier Pritchard from the University of Sussex will be visiting Clare Burrage and Swagat Mishra for the full week.

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If you have any events/visitors you would like including in next week’s bulletin, please let me know.


Best wishes

Ella

Ella Batchelor (she/her)
Administrator

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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