Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

Abstract This Conceptual Design Report describes LUXE (Laser Und XFEL Experiment), an
experimental campaign that aims to combine the high-quality and high-energy electron …

We review the physics of hyperons and Δ-resonances in dense matter in compact stars. The
covariant density functional approach to the equation of state and composition of dense …

Magnetars are young and highly magnetized neutron stars that display a wide array of X-ray
activity including short bursts, large outbursts, giant flares, and quasi-periodic oscillations …

The hot and dense matter generated in heavy-ion collisions may contain domains which are
not invariant under P and CP transformations. Moreover, heavy-ion collisions can generate …

Neutron stars are natural physical laboratories allowing us to study a plethora of
phenomena in extreme conditions. In particular, these compact objects can have very strong …

Magnetars are neutron stars with ultrastrong magnetic fields, which can be observed in x-
rays. Polarization measurements could provide information on their magnetic fields and …

The next generation of ground-based gravitational-wave detectors will observe
coalescences of black holes and neutron stars throughout the cosmos, thousands of them …

We discovered 2.8 s pulsations in the X-ray emission of the ultraluminous X-ray source
(ULX) M51 ULX-7 within the UNSEeN project, which was designed to hunt for new pulsating …

Nuclear matter and finite nuclei exhibit the property of superfluidity by forming Cooper pairs.
We review the microscopic theories and methods that are being employed to understand the …