[Astro] [CAPT] Particle Cosmology & Gravity Seminar this week: Andrzej Wereszczynski (Institute of Physics, Jagiellonian University)

[Swagat Mishra]

Dear All,

                  We have a seminar this week, whose details are provided below -

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  1.
Speaker: Andrzej Wereszczynski  (Institute of Physics, Jagiellonian University)  (In-person Seminar)



            Seminar date: 4th February, Tuesday, 1 pm UK time



            Venue: Seminar Room A 113



             Title:  Oscillons from Q-balls through Renormalization


Abstract:  Using a renormalization-inspired perturbation expansion we show that oscillons in a generic field theory in (1+1)-dimensions arise as dressed Q-balls of a universal (up to the leading nonlinear order) complex field theory. This theory reveals a close similarity to the integrable complex sine-Gordon model which possesses exact multi-Q-balls. We show that the excited oscillons, with characteristic modulations of their amplitude, are two-oscillons bound states generated from a two Q-ball solution.

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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

List of upcoming Seminars


11th Feb: Keir Rogers (Imperial) : Axions

18th Feb : John Carlton (King's College) : Atom Interferometers

25th Feb: Qi-Xin Xie (Nottingham) : Q-Ball Superradiance

04th March: NO SEMINAR (PhD interviews)

11th March: Diksha Jain (Cambridge) : Amplitudes, Correlators



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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