[Astro] [CAPT] 'Paricle Cosmology and Gravity' Seminar on 25th July Friday 14:30 by Suratna Das on Warm Inflation

[Swagat Mishra]

Dear All,
      A gentle reminder of tomorrow's seminar.

With Regards,
-Swagat
-------------

Dear All,

                  My collaborator Suratna Das will be visiting us on Friday 25th July and she will be giving a seminar, whose details are -

(Please note the unusual day and time)

-----------------------------------------

Speaker: Suratna Das (Ashoka University, Delhi, India)

Seminar date: July 25th, Friday, 02:30 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Some "background checks" for Warm Inflation.

Abstract: Warm Inflation is a variant inflationary scenario where the inflaton field continuously dissipates its energy to a subdominant radiation bath during inflation. Among the many advantages that WI has over its more standard counterpart, which we will refer to as Cold Inflation, is that WI smoothly transits to a radiation dominated Universe post inflation without invoking the need of a reheating phase, dynamics of which is still quite unknown. The dissipation effects effective during Warm Inflation makes the dynamics of the inflation quite intricate. Even the simple graceful exit in Cold Inflation turns out to be not so simple in Warm Inflation. In this talk, we will do the background analysis of Warm Inflation and shed light on how Warm Inflation ends or gracefully exits. These graceful exit criteria also constrain the form of the potential and the dissipative coefficients that one may choose for their Warm Inflationary model. Moreover, it indicates whether Warm Inflation can at all exit to a radiation dominated epoch or not.

--------------------------------------------------

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




Swagat Saurav Mishra,

Research Fellow

​

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: Particles <particles-bounces at lists.nottingham.ac.uk> on behalf of Swagat Mishra <Swagat.Mishra at nottingham.ac.uk>
Sent: 18 July 2025 08:30
To: capt at nottingham.ac.uk <capt at nottingham.ac.uk>; ncog-people at nottingham.ac.uk <ncog-people at nottingham.ac.uk>; O365-Gravity Laboratory <o365-gravitylaboratory at UniofNottm.onmicrosoft.com>
Cc: Bobby Acharya <bacharya at ictp.it>; Mohammed Shafi <mohammedshafi18 at alumni.iisertvm.ac.in>; Isaac Saunders <pmxis3 at exmail.nottingham.ac.uk>; Leonora van Deurs <ppylv1 at exmail.nottingham.ac.uk>; Suratna Das <suratna.das at ashoka.edu.in>; Ella Batchelor (staff) <ppzeb1 at exmail.nottingham.ac.uk>; Drande Patogu <ppydp10 at exmail.nottingham.ac.uk>
Subject: [Particles] [CAPT] 'Paricle Cosmology and Gravity' Seminar on 25th July Friday 14:30 by Suratna Das on Warm Inflation

Dear All,

                  My collaborator Suratna Das will be visiting us on Friday 25th July and she will be giving a seminar, whose details are -

(Please note the unusual day and time)

-----------------------------------------

Speaker: Suratna Das (Ashoka University, Delhi, India)

Seminar date: July 25th, Friday, 02:30 pm UK time

Venue: Seminar Room A 113 (Cripps North Building, CAPT)


Title: Some "background checks" for Warm Inflation.

Abstract: Warm Inflation is a variant inflationary scenario where the inflaton field continuously dissipates its energy to a subdominant radiation bath during inflation. Among the many advantages that WI has over its more standard counterpart, which we will refer to as Cold Inflation, is that WI smoothly transits to a radiation dominated Universe post inflation without invoking the need of a reheating phase, dynamics of which is still quite unknown. The dissipation effects effective during Warm Inflation makes the dynamics of the inflation quite intricate. Even the simple graceful exit in Cold Inflation turns out to be not so simple in Warm Inflation. In this talk, we will do the background analysis of Warm Inflation and shed light on how Warm Inflation ends or gracefully exits. These graceful exit criteria also constrain the form of the potential and the dissipative coefficients that one may choose for their Warm Inflationary model. Moreover, it indicates whether Warm Inflation can at all exit to a radiation dominated epoch or not.

--------------------------------------------------

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

With regards,
-Swagat


Swagat Saurav Mishra,

Research Fellow

​

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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