[Astro] [CAPT] Upcoming Particle Cosmology Seminars

Swagat Mishra Swagat.Mishra at nottingham.ac.uk
Thu Sep 19 14:07:38 BST 2024 

Dear All,
              A gentle reminder of today's seminar


  1.
Xavier Pritchard (University of Sussex) visiting Clare Burrage and Swagat Mishra for the full week


            Seminar date: 19th September, Thursday, 3 pm

           Venue: Seminar Room A 113

             Title:  Early universe degrees of freedom and primordial black holes

             Abstract:   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.

Links 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

With Regards,
-Swagat


Swagat Saurav Mishra,

Postdoctoral Research Associate

​

Particle Cosmology Group,

Centre for Astronomy and Particle Theory,

University of Nottingham, Nottingham NG7 2RD, UK.

Website: https://swagatam18.wordpress.com/

Research Link:https://inspirehep.net/authors/1517353

________________________________
From: Swagat Mishra (staff) <ppzsm5 at exmail.nottingham.ac.uk>
Sent: 13 September 2024 16:11
To: capt at nottingham.ac.uk <capt at nottingham.ac.uk>; maths-quantum-gravity-group at lists.nottingham.ac.uk <maths-quantum-gravity-group at lists.nottingham.ac.uk>; O365-Gravity Laboratory <o365-gravitylaboratory at UniofNottm.onmicrosoft.com>
Cc: Xav Pritchard <X.Pritchard at sussex.ac.uk>; andreas.ekstedt at physics.uu.se <andreas.ekstedt at physics.uu.se>; Ella Batchelor (staff) <ppzeb1 at exmail.nottingham.ac.uk>
Subject: Upcoming Particle Cosmology Seminars

Dear All,
                    We begin our weekly particle Cosmology seminars for this term from next week. In this term, the seminars will be held on Tuesdays at 1pm UK time. In the coming week, we have two visitors, therefore we will be having two seminars (one on Tuesday and one on Thursday). In the following, I provide the details of seminars next week, as well as a list of upcoming seminars for the term.


Week: 16/09/2024 - 20/09/2024
-----------------------------------------


  1.
Visitor: Andreas Ekstedt (DESY, Hamburg) visiting Oliver Gould for the full week (more details to follow from Oli early next week


            Seminar date: 17th September, Tuesday, 1 pm

            Venue: Seminar Room A 113

             Title:  From EFTs to real-time dynamics and back again

             Abstract:  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.



  1.
Visitor: Xavier Pritchard (University of Sussex) visiting Clare Burrage and Swagat Mishra for the full week


            Seminar date: 19th September, Thursday, 3 pm

           Venue: Seminar Room A 113

             Title:  Early universe degrees of freedom and primordial black holes

             Abstract:   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.

Links 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


A list of upcoming seminars for this term (with rough titles)


  *
24 Sept | Jeremy Wachter (Wenworth Institute of Technology, USA) | Numerical studies of gravitational self-evolution of cosmic string loops
  *
27 Sept | Christian Kading (Vienna, Tech. U., Atominst., Austria) | Screening Scalar fields (Journal Club time)
  *
01 Oct | Dibya Chakraborty (Indian Institute of Technology, Madras) | String Cosmology
  *
08 Oct | Theo Anton (QMUL) | Modified Gravity
  *
10 Oct | Kieran Wood (Nottingham) | Multi-metric gravity and Gregory-Leflamme instability (Journal Club time)
  *
15 Oct | Eemeli Tomberg (Lancaster U) | Compaction function for Primordial Black Holes
  *
22 Oct | Ayngaran Thavanesan (DAMTP Cambridge) | Cosmological CPT theorem
  *
29 Oct | Santiago Agui Salcedo (DAMTP Cambridge) | Open EFT for inflation
  *
05 Nov | Yuyu Mo (Edinburgh Higgs Centre) | Bootstrap
  *
12 Nov | Alex Jenkins (UCL) | Quantum Matter, Analogue Gravity
  *
19 Nov |  Bjoern Friedrich (Heidelberg) | String Phenomenology
  *
26 Nov | Tamara Evstafyeva (DAMTP Cambridge) | Gravitational Waves
  *
03 Dec | Emma Albertini (Imperial College London) | Gravity, Scattering Amplitudes
  *
10 Dec | TBD


With Regards,
-Swagat



Swagat Saurav Mishra,

Postdoctoral Research Associate

​

Particle Cosmology Group,

Centre for Astronomy and Particle Theory,

University of Nottingham, Nottingham NG7 2RD, UK.

Website: https://swagatam18.wordpress.com/

Research Link:https://inspirehep.net/authors/1517353

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