Quantum Simulators Create a Totally New Phase of Matter

Physicists have created a physical simulation of an exotic and elusive state of matter first predicted in the 1970s, called a spin liquid. Spin liquids contain arrangements of electron spins — the subatomic equivalent of bar magnets — in a solid material that are intrinsically unstable, like the molecules in a liquid. Evidence for their existence is still preliminary, but researchers have now been able to simulate them using atoms suspended in a vacuum — a type of quantum computer that has received less attention than other technologies. Such ‘quantum simulations’ show promise as early applications of quantum computers.