In most cosmological models, rapid expansion of space marks the first moments of the
Universe and leads to the amplification of quantum fluctuations. The description of …

Phonons have the characteristic linear dispersion relation of massless relativistic particles.
They arise as low-energy excitations of Bose-Einstein condensates and, in …

The production of quantum field excitations or particles in cosmological spacetimes is a
hallmark prediction of curved quantum field theory. The generation of cosmological …

Pair creation is a fundamental prediction of quantum field theory in curved spacetimes.
While classical aspects of this phenomenon have been observed, the experimental …

We show that analog gravity systems exist for charged, planar black holes in asymptotic anti-
de Sitter space. These black holes have been employed to describe, via the gauge-gravity …

Analogue models of gravity have played a pivotal role in the past years by providing a test
bench for many open issues in quantum field theory in curved spacetime such as the …

This collection of perspective pieces captures recent advancements and reflections from a
dynamic research community dedicated to bridging quantum gravity, hydrodynamics, and …

We demonstrate here that the metric of a planar black hole in asymptotic anti-de Sitter space
can, on a slice of dimension 3+ 1, be reproduced as a relativistic acoustic metric. This …

An attempt is made to explain time non-dilation allegedly observed in quasar light curves.
The explanation is based on the assumption that quasar black holes are, in some sense …

In general relativity, there is a velocity dependent term in the gravitational acceleration of a
test particle for an observer at infinity. Depending on the direction of motion and the speed …