Building useful quantum technologies—from sensors to computers—requires generating highly complex entangled states, in which ...

Entanglement sits at the heart of quantum technology, but it is rarely easy to make. The most powerful states often demand ...

Quantum spin liquids are exotic states of matter in which spins (i.e., the intrinsic angular momentum of electrons) do not settle into an ordered pattern and continue to fluctuate, even at extremely ...

When two-dimensional electron systems are subjected to magnetic fields at low temperatures, they can exhibit interesting states of matter, such as fractional quantum Hall liquids. These are exotic ...