To explore this question, researchers at the Center for Quantum Dynamics performed experiments in which they confined a gas of ultracold atoms in two - dimensional traps which they created using focused laser beams. (sciencedaily.com)
A paper describing the research appears January 4, 2018 in the journal Nature along with a paper from a separate group from Germany that shows that a similar mechanism can be used to make a gas of ultracold atoms exhibit four - dimensional quantum Hall physics as well. (sciencedaily.com)
Such spin - polarized, dilute, and ultracold gases are important for spectroscopy, metrology, and atom optics. (science.sciencemag.org)