Chemical elements · Directory entry

Rubidium

Element 37 · chemical symbol: Rb

These Vrulum profiles mention Rubidium by name. Read each profile for its specific context; a mention alone does not establish composition, performance or use of the pure element.

For periodic-table data and other properties, consult the Royal Society of Chemistry periodic table.

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Research and prototypes

Neutral-atom quantum computers

Neutral-atom quantum computers hold individual atoms in optical tweezers and use their internal states as qubits, with laser-driven links between neighbouring atoms. Since 2023, research groups have reported high-fidelity two-qubit gates, small logical-qubit processors and arrays of thousands of atoms, but no neutral-atom machine has yet run a large, error-corrected calculation.