DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS 2026

    • Thursday 23 April 2026 at 10:15 in A315 and using Zoom: Jyotismita Adhikary (Warsaw) Onsite Cosmo Seminar
      Probes of light dark matter in relativistic regime
      Abstract:       Dark matter interactions are traditionally probed in the non-relativistic regime characteristic of cold DM in the present-day universe. However, this strategy is insufficient for probing a class of important thermal DM targets for which non-relativistic scattering rates are highly suppressed. This opens an unexplored region of parameter space and motivates the development of detection strategies specifically tailored to low-mass dark matter. In this talk, I will discuss examples of such models and outline novel detection strategies designed to probe them — either directly, or indirectly through the detection of light dark-sector mediators.
    • Thursday 21 May 2026 at 10:15 in A315 and using Zoom: Michal Heller (Ghent)
      TBA
      Abstract:       TBA
    • Tuesday 26 May 2026 at 10:15 in A315 and using Zoom: Mika Nurmela (Helsinki)
      Towards the full four-loop pressure of cold and dense quark matter
      Abstract:       The physical nature of the matter within ultradense cores of neutron stars is closely linked to the equation of state — the relationship between the pressure and energy density of cold and dense quantum chromodynamic matter. Over the past decade, significant progress has been achieved in the calculation of the subsequent correction to the pressure, with only a handful of integrals currently remaining to be evaluated. In this talk, I will address the challenges encountered in the evaluation of the naive hard mode contribution to the pressure and present the necessary tools for evaluating the corresponding integrals. Additionally, I will provide a brief overview of the remaining hurdles that need to be overcome to achieve the full correction to the pressure.
    • Thursday 6 June 2026 at 10:15 in A315 and using Zoom: Andrea Olzi (Paris)
      TBA
      Abstract: TBA
    • Tuesday 11 August 2026 at 10:15 in A315 and using Zoom: Christophe Royon (CMS)
      TBA
      Abstract:       TBA

Hopefully the up to 50 min + 10 min discussion long seminar/colloquium will be understandable to a wide audience.
Contacts: Keijo Kajantie (keijo kajantie at helsinki fi) [ HIP seminar],
Tushar Gupta  (tushar.gupta at helsinki fi) [cosmo seminar]

Other related seminars

Friday 10-12 seminar series in D114: Astrophysics seminar
Mathematical Physics Seminar and Workshop series Wed 14-16 in Exactum C123.
InstituteQ Events and Seminars