Technology / Hardware / Neutral atoms
Neutral atoms
Laser-trapped neutral atoms arranged in programmable arrays.
The tradeoff
Strengths: Large arrays; Flexible geometry; Promising scaling.
Challenges: Gate fidelity; Atom loss; Control and readout.
Maturity: prototype → early-commercial.
Specific gate speeds, fidelities and qubit counts are not published here, they change quarterly. Verify against each company's latest technical publications, not press releases.
Who is pursuing it
QuEra
Boston neutral-atom company from Harvard/MIT research, known for large programmable arrays and error-correction collaborations.
private
Pasqal
French neutral-atom company co-founded by a physics Nobel laureate, selling systems to HPC centers.
private
Atom Computing
US neutral-atom company that announced large-array machines and partners with Microsoft on error-corrected demonstrations.
private
Infleqtion
Neutral-atom computing plus a revenue-generating quantum-sensing business (formerly ColdQuanta).
private
planqc
Munich startup from the Max Planck ecosystem building neutral-atom machines for European HPC centers.
private