Quantum spin liquids may be considered'quantum disordered'ground states of spin systems,
in which zero-point fluctuations are so strong that they prevent conventional magnetic long …

We review a key subset of the experimental studies that have recently focused on cubic
pyrochlore magnets whose pseudospin-1 2 degrees of freedom have mixed dipolar and …

The Ce 3+ pseudospin-1/2 degrees of freedom in the pyrochlore magnet Ce 2 Zr 2 O 7 are
known to possess dipole-octupole character, making it a candidate for novel quantum spin …

The search for quantum spin liquids—topological magnets with fractionalized excitations—
has been a central theme in condensed matter and materials physics. Despite numerous …

Gauge theories are powerful theoretical physics tools that allow complex phenomena to be
reduced to simple principles and are used in both high-energy and condensed matter …

We propose that in a certain class of magnetic materials, known as non-Kramers “spin ice,”
disorder induces quantum entanglement. Instead of driving glassy behavior, disorder …

In a quantum spin liquid, the magnetic moments of the constituent electron spins evade
classical long-range order to form an exotic state that is quantum entangled and coherent …

Symmetry fractionalization is a ubiquitous feature of topologically ordered states that can be
used to classify different symmetry-enriched topological phases and reveal some of their …

Recent investigations on the dipolar-octupolar compounds Ce 2 Zr 2 O 7 and Ce 2 Sn 2 O 7
suggest that they may stabilize so-called π-flux octupolar quantum spin ice (π-O-QSI), a …

Higher-rank generalizations of electrodynamics have recently attracted considerable
attention because of their ability to host “fracton” excitations, with connections to both fracton …