Understanding exotic forms of magnetism in quantum mechanical systems is a central goal
of modern condensed matter physics, with implications for systems ranging from high …

Magnetism plays a key role in modern technology and stimulates research in several
branches of condensed matter physics. Although the theory of classical magnetism is well …

Quantum antiferromagnets are of broad interest in condensed-matter physics as they
provide a platform for studying exotic many-body states including spin liquids and high …

One of the intriguing properties of quantum many-body systems is the emergence of long-
range order from particles with short-range interactions. For example, magnetism involves …

Quantum magnetism originates from the exchange coupling between quantum mechanical
spins. Here, we report on the observation of nearest-neighbor magnetic correlations …

Quantum mechanical superexchange interactions form the basis of quantum magnetism in
strongly correlated electronic media. We report on the direct measurement of …

Quantum interference can deeply alter the nature of many-body phases of matter. In the
case of the Hubbard model, Nagaoka proved that introducing a single itinerant charge can …

Understanding magnetic phases in quantum mechanical systems is one of the essential
goals in condensed matter physics, and the advent of prototype quantum simulation …

Geometrical frustration in strongly correlated systems can give rise to a plethora of novel
ordered states and intriguing magnetic phases, such as quantum spin liquids,–. Promising …

We report on the observation of antiferromagnetic correlations of ultracold fermions in a
variety of optical lattice geometries that are well described by the Hubbard model, including …