Micromagnetics has been the method of choice to interpret experimental data in the area of
microscopic magnetism for several decades. In this article, we show how progress has been …

Quantum phase transitions take place between distinct phases of matter at zero
temperature. Near the transition point, exotic quantum symmetries can emerge that govern …

Nonequilibrium dynamics of many-body systems are important in many scientific fields.
Here, we report the experimental observation of a phase transition of the quantum coherent …

The smooth disappearance of antiferromagnetic order in strongly correlated metals
commonly furnishes the development of unconventional superconductivity. The canonical …

Polarizing nuclear spins is of fundamental importance in biology, chemistry and physics.
Methods for hyperpolarizing 13C nuclei from free electrons in bulk usually demand …

Long-range interactions are relevant for a large variety of quantum systems in quantum
optics and condensed matter physics. In particular, the control of quantum–optical platforms …

At quantum critical points (QCPs) quantum fluctuations exist on all length scales, from
microscopic to macroscopic, which, remarkably, can be observed at finite temperatures—the …

Quantum phase transitions occur at zero temperature, when the ground state of a
Hamiltonian undergoes a qualitative change as a function of a control parameter. We …

Mesoscale patterns as observed in, for example, ferromagnets, ferroelectrics,
superconductors, monomolecular films or block copolymers, reflect spatial variations of a …

We report results of low-temperature heat-capacity, magnetocaloric-effect, and neutron-
diffraction measurements of TmVO4, an insulator that undergoes a continuous …