Title: "Emergent Horizons in the Laboratory"
The concept of a horizon known from general relativity describes the
loss of causal connection and can be applied to non-gravitational
scenarios such as out-of-equi\-librium condensed-matter systems in the
This analogy facilitates the identification and theoretical study
(e.g., regarding the trans-Planckian problem) and possibly the
experimental verification of ``exotic'' effects known from gravity
and cosmology, such as Hawking radiation.
Furthermore, it yields a unified description and better understanding
of non-equilibrium phenomena in condensed matter systems and their
By means of several examples including general fluid flows, expanding
Bose-Einstein condensates, and dynamical quantum phase transitions,
the concepts of event, particle, and apparent horizons will be
discussed together with the resulting quantum effects.