HIP NEWS March 27th 2017
DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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.
Wednesday 29 March 2017 at 14.15 in A315
Thomas Tram (ICG, Portsmouth)
Structure formation under the spell of General Relativity.
Abstract: Upcoming large scale structure surveys will map the structure of the Universe on very large scales where General Relativistic effects become important. In order to take full advantage of upcoming Large Scale Structure datasets, we must be able to make accurate theoretical predictions for all observational scales. This is well known on small scales where the precision of Newtonian N-body codes is constantly being pushed, but it is equally true at large scales. In this talk I will first present numerical and analytic computations of the matter bispectrum generated from Gaussian initial conditions at second order in perturbation theory, and I will then discuss a set of recently discovered methods for including GR effects and radiation in Newtonian N-body simulations.
CHECK OUT THE VIDEO CLIPS ON HIP YOUTUBE CHANNEL
There are new video clips out on HIP Youtube channel:
Feel free to share, like and click them. Special thanks to the volunteers appearing on the video and to everyone who has contributed.
J. Chuba 4.4. – 7.4. (FM)
P. Dendooven 7.2. – 7.4.
B. DiNunno 26.3. – 1.4. (NJ, E K-V)
T. Tram 27.3. – 30.3. (FM)