Computing · 1999
Superconducting qubit
A qubit made from a tiny superconducting circuit.
Yasunobu Nakamura's team at NEC demonstrated coherent control of a Cooper-pair box qubit. Superconducting circuits became the platform for IBM's and Google's processors.
What it built on 2
What it led to 3
Related measurements
The dashed line marks when it first worked.
Selected gate-model quantum processors Latest: 1.12k physical qubits (2023) Source: Wikipedia: Timeline of quantum computing and communication; Wikipedia: List of quantum processors