print logo


Aktuelle saker


  • spacexpo European Space Expo in Oslo 28. aug. 2015 09:00

    The European Space Expo will visit Oslo, Norway from 28 August to 6 September. During the Space Expo we will give three talks on space and ionospheric research. The talks are open for everybody!

  • web_eriksen_-photo_profil_bw Disputas: Jon Alm Eriksen 7. sep. 2015 13:15

    Master i Fysikk Jon Alm Eriksen ved Fysisk institutt vil forsvare sin avhandling for graden ph.d: "Pattern Formation in Granular Fluids"

  • Mastereksamen: Arpit 8. sep. 2015 10:00

    Intensity-Modulated Proton Therapy for Locally Advanced Cervical Cancer

    IMRT and IMPT of cervical cancer and effect of reduced margins

  • Mastereksamen: Emilie Sørum Fjørner 8. sep. 2015 13:00

    Modeling the Effects of the Extracellular Matrix on Neuron Dynamics

  • UV/IR mixing in non-Fermi liquids 9. sep. 2015 13:05

    Ipsita Mandal, Perimeter institute

    We devise a renormalization group analysis for quantum field theories with Fermi surface to study scaling behaviour of non-Fermi liquid states in a controlled approximation. The non-Fermi liquid fixed points are identified from a Fermi surface in (m+1) spatial dimensions, while the co-dimension of Fermi surface is also extended to a generic value. We also study superconducting instability in such systems as a function of dimension and co-dimension of the Fermi surface. The key point in this whole analysis is that unlike in relativistic QFT, the Fermi momentum k F enters as a dimensionful parameter, thus modifying the naive scaling arguments. The effective coupling constants are found to be combinations of the original coupling constants and k F .

I media