Bose–Einstein condensates articles from across Nature Portfolio

This study describes experiments with ultracold lithium Fermi gases in which many-body pairing leads to the emergence of a pseudogap, and it confirms theoretical predictions relevant to cuprate superconductivity.

The transition from a metastable state to the ground state in classical many-body systems is mediated by bubble nucleation. This transition has now been experimentally observed in a quantum setting using coupled atomic superfluids.

The dynamics of isolated quantum many-body systems far from equilibrium is the object of intense research. Magnetization measurements in a spinor atomic gas now offer a way to classify universal dynamics based on symmetry and topology.

SrCu₂(BO₃)₂ realizes the Shastry-Sutherland model (SSM), a 2D frustrated dimer model. Here, via high-magnetic-field inelastic neutron scattering measurements and matrix-product-state calculations, Fogh et al. find evidence for Bose-Einstein condensation of S = 2 two-triplon bound states, which is a spin-nematic phase.

The lack of Galilean invariance in spin-orbit coupled systems greatly reduces the controllability of optical lattices and strongly limits applications. By simultaneously applying Raman and radio frequency coupling to a dilute-gas Bose-Einstein condensate, the authors generate an emerging lattice with restored Galilean invariance.

Quantum simulators can provide new insights into the complicated dynamics of quantum many-body systems far from equilibrium. A recent experiment reveals that underlying symmetries dictate the nature of universal scaling dynamics.

The observation of quantized vortices in a rotating gas of magnetic atoms confirms a long-standing prediction and has far-reaching implications for the study of phenomena related to superfluidity.

L. A. P. Ardila highlights the importance of quantum Monte Carlo methods for the study of polarons in ultracold quantum gases.

Entanglement can provide an extra boost in precision, but entangled states are hard to detect. A recent experiment solves this problem by letting the entangling dynamics come full circle — or not, depending on the subtle perturbation to be sensed.