# DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS

## HIP seminar room A315

**Tuesday 28 March 2017 at 10.15 in A315: Brandon DiNunno (Austin)**

*Relaxation of non-local probes in AdS/CFT*

Abstract: I will discuss the late-time evolution of non-local observables in an expanding, boost-invariant strongly coupled plasma via Holography. Focusing on first and second order dissipative Bjorken hydrodynamics, we compute the late-time behavior of two-point functions, Wilson loops and entanglement entropies analytically. We find universal formulae for the relaxation of such probes in conformal field theories with a gravity dual in the limit of infinite coupling. We then generalize our findings to finite coupling by studying Gauss-Bonnet gravity as well as alpha’ corrections.**Thursday 27 April 2017 at 10.15 in A315: Jens Andersen (Trondheim)**

*QCD in strong magnetic fields*

Abstract: QCD in strong magnetic fields is relevant for compact stars, heavy-ion collisions, and the early universe. In this talk I will discuss our current understanding of the thermodynamics of QCD in a constant magnetic background. I will focus on magnetic catalysis at T=0 and inverse magnetic catalysis around the chiral transition in the context of low-energy models (Nambu-Jona-Lasinio and quark-meson models with and without the Polyakov loop) and lattice QCD.**Thursday 4 May 2017 at 10.15 in A315: Hannu Paukkunen (Jyväskylä)**

*TBA*

Abstract: TBA**Tuesday 9 May 2017 at 10.15 in A315: Jim Olsen (Princeton, CERN)**

*TBA*

Abstract: TBA**Tuesday 6 June 2017 at 10.15 in A315: Daniel Fernández (Reykjavik)**

*TBA*

Abstract: TBA**Tuesday 13 June 2017 at 10.15 in A315: Kent Yagi (Princeton)**

*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) [department / HIP seminar],

Francesco Montanari (francesco montanari at helsinki fi) [cosmo seminar]

**Other related seminars**

Friday 10-12 seminar series in D117: Astrophysics seminar.

Mathematical Physics Seminar and Workshop series Wed 14-16 in Exactum C123.