Applications of gauge/gravity duality to elementary particle and condensed matter physics
by
Johanna Erdmenger(Max-Planck-Institute for Physics, Munich)
→
Europe/Berlin
build. 2a, SR 2 (DESY Hamburg)
build. 2a, SR 2
DESY Hamburg
Description
A duality is a map between two different theories describing the same physics. Gauge/gravity duality is a map between quantum field theories and gravity theories which is based on string theory. In particular, it maps strongly coupled quantum field theories, which are generically hard to describe, to weakly coupled gravity theories which are much more tractable. This map allows to address new questions about strongly coupled systems in both particle and condensed matter physics, thus providing new links between different areas of physics. In the colloquium, the basic ideas of gauge/gravity duality will be explained and applied to specific examples. These include Kondo models of strongly coupled electron systems interacting with a magnetic impurity. In addition to their intrinsic interest, these models are a toy model for QCD. Moreover, new results on meson spectra in gauge/gravity duality will be presented, as well as new results on non-equilibrium systems.
