Quantum · Reference · continually updated
Qubit Approaches
Superconducting, trapped ions, neutral atoms, photons: the rival ways to build a qubit.
6 topics · continually updated
Superconducting qubits
the fast, cold, industry-standard approach
Trapped ions
the most accurate qubits anyone has built
Photonic qubits
computing with particles of light
Silicon spin qubits
the bet on existing chip factories
Topological qubits
the high-risk bet on a qubit that protects itself
Neutral atoms
QuEra and Atom Computing