Spin Qubits

Spin qubits store information in a single electron's spin in silicon - a manufacturable qubit whose millikelvin cooling ties directly to Kronos's helium-3 supply story.

The concept

An electron in a quantum dot uses spin-up and spin-down as |0> and |1>; gate voltages and drive rotate it, and exchange coupling gives two-qubit gates. They are tiny and potentially foundry-compatible.

How Kronos uses it

Spin qubits are one of the platforms Kronos tracks for its materials workloads, and they sharpen a Kronos thesis: scaling quantum hardware demands ever more dilution refrigeration, and thus helium-3 - a strategic isotope Kronos's fuel cycle can supply.

Honest note

Spin-qubit systems are early; their fusion-materials usefulness shares the ~mid-2030s horizon.