Ultracold Atoms Reveal a New Type of Quantum Magnetic Behavior

The new research from Harvard and MIT researchers describe how spins interact in a chain of single atoms.

via MIT

In experiments with ultracold lithium atoms, the researchers observed different ways in which the spins of the atoms evolve. Like tippy ballerinas pirouetting back to upright positions, the spinning atoms return to an equilibrium orientation in a way that depends on the magnetic forces between individual atoms. For example, the atoms can spin into equilibrium in an extremely fast, “ballistic” fashion or in a slower, more diffuse pattern.

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