Seminars

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS 2022

 

  • Tuesday 13 December 2022 at 10:15 in A315 and using Zoom: Tomas Lindén (Helsinki)
    Privately funded fusion research
    Abstract:
    Progress in fusion research has been limited by the available funding but in the last few years the amount of total funding to privately funded fusion companies has increased significantly. In 2021 Helion Energy received 0.5 GUSD and Commonwealth Fusion Systems got 1.8 GUSD in funding. Zap Energy is currently running the experiment they aim to demonstrate Q=1 with and other companies are building their next devices with similar goals. A new feature is that traditional energy companies are also funding fusion research and development. The Fusion Industry Association (FIA) has currently about thirty member companies. According to surveys conducted by the FIA in 2021 and 2022 most private fusion companies expect fusion energy production to start in the 2030:s. In this talk an overview of a few of these fusion companies is presented.

  • Wednesday 14 December 2022 at 10:15 in A315 and using Zoom: Daniel Panizo (Uppsala) (note day!)
    Blowing bubbles from string theory
    Abstract:The dark bubble model proposes a new take on braneworld cosmology, where a 4D dS universe rides on the boundary of a 5D bubble, which mediates the decay between two different AdS_5 vacua. All 4D FRLW cosmology features find their interpretation in 5D bulk properties. Furthermore, the nucleation event of such higher dimensional bubbles finds a 4D interpretation as the tunnelling of the wave-function in Quantum Cosmology, a la Vilenkin. Finally, we will present a spinning SUGRA 10D background housing the first stringy embedding of the dark bubble model, with intriguing connections to the dark dimension proposal and a novel hierarchy of energy scales.

  • Tuesday 20 December 2022 at 10:15  using Zoom: Sophia Han (T.D.Lee Institute, Shanghai)
    TBA
    Abstract:
    TBA

  • Tuesday 10 January 2023 at 10:15  using Zoom: Tuomas Lappi (Jyväskylä)
    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],
Jaakko Annala (jaakko annala at helsinki fi) [cosmo seminar]

New Nordic series of seminars over the web, link: https://sites.google.com/view/nordictheory/home 
For more information, and to subscribe to email announcements, contact Oscar Henriksson (oscar henriksson at helsinki fi)

Other related seminars

Friday 10-12 seminar series in A315:Astrophysics seminar.
Mathematical Physics Seminar and Workshop series Wed 14-16 in Exactum C123.