Nuclear & particle physics

Research seminar: quantum field theory

Winter semester 2017/2018

Seminar

Course number in the course overview: 110282

  • Organizers, organization & dates

    Organizers

    Dates & locations

    Seminar Monday, 14:00–16:00 KP/TP, seminar room 304

    Some dates take place in the framework of

    GRK 2149: Joint seminar of the research focus particle physics (“RTG Colloquium”)

    Date: 1st or 3rd Friday of a month, 12:00 s. t.

    Location: KP/TP 404

  • Topics & schedule

    Date Topic Speaker

    09.10.2017

    Phase transitions, interfaces and fluctuating fields

    G. Münster

    (ITP WWU Münster)

    Thu., 19.10.2017, 11:00 s. t., SR 303

    (Special date!)

    Eikonal integrals and basic resummation techniques for jet photoproduction

    J. Potthoff

    (ITP WWU Münster)

    23.10.2017 Non-standard heavy vector bosons at the LHC

    Dr. G. Corcella

    (INFN - LNF, Frascati/Roma)

    Friday, 27.10.2017

    (Colloquium of GRK 2149)

    Cosmological seed magnetic fields from aperiodic plasma fluctuations

    Prof. Dr. R. Schlickeiser

    (Ruhr-Universität Bochum, Fakultät für Physik und Astronomie)

    06.11.2017 MSSM benchmarks with realistic gaugino-higgsino mixing

    M. Sunder

    (ITP WWU Münster)

    27.11.2017

    Minimal extensions of the Standard Model explaining dark matter and neutrino masses

    S. May

    (ITP WWU Münster)

    04.12.2017 Photoproduction with Pythia 8 and ultraperipheral collisions at the LHC

    Dr. I. Helenius

    (Eberhard Karls Universität Tübingen, Institut für Theoretische Physik)

    11.12.2017 Christmas Party All
    08.01.2018 N=1 supersymmetric Yang-Mills theory on the lattice

    S. Ali

    (ITP WWU Münster)

    Freitag, 19.01.2018

    (Kolloquium des GRK 2149)

    Top physics at the LHC Dr. M. Schulze
    (Humboldt-Universität zu Berlin, Institut für Physik)
    22.01.2018 t.b.a.

    S. Schmiemann

    (ITP WWU Münster)

    29.01.2017 F.A.Q.'s & Planning for the summer term 2018 All

  • QFT-FAQ

    Frequently Asked Questions

    1. Why does QCD on a lattice work so well? Lattice simulations on 100 - 200 sites often yields interesting results.
    2. At what order would QED lose accuracy? Because of the Landau pole, the coupling blows up, perturbation theory must have limited applicability. Yet, no theory in physics has provided us with more accurate results, although corrections at comperatively high loop order have been included.
    3. When is a Wick rotation in QFT justified? Are there classes of theories for which it is not justified?
    4. What does the limit from QFT to QM look like? Furthermore, QM needs observables and an interpretation theory, which are both not prominent in the usage and development of QFT. Where have they gone?
    5. What do entangled states in QFT look like?
    6. How is it possible to reliably calculate error estimates in perturbation theory?