Qubit Watch
Tracking the Qubit Count of leading and emerging companies in the Quantum Computing sector as we race towards a quantum future
Here are the latest qubit counts for companies we have been following
| Qubit Count | Company | Announce Date | Notes | News |
|---|---|---|---|---|
| 1121 | IBM | 2023-12-04 | Condor | Link |
| 80 | Rigetti | 2021-12-15 | Aspen-M-3 | Link |
| 72 | 2018-03-15 | Bristlecone | Link | |
| 72 | Origin Q.C. | 2024-01-06 | 3rd-gen Wukong | Link |
| 25 | IonQ | 2022 | ||
| 20 | Honeywell | 2022-06-01 | Link | |
| 12 | Intel | 2023-06-15 | Tunnel Falls | Link |
| 9 | Rigetti | 2023-12-06 | Novera QPU | Link |
...quantum computers use quantum bits—qubits—that, because of the bizarre nature of quantum physics, can be in a state of superposition where they are both 1 and 0 simultaneously.
Superposition lets one qubit perform two calculations at once, and if two qubits are linked through a quantum effect known as entanglement, they can help perform 22 or four calculations simultaneously; three qubits, 23 or eight calculations; and so on. In principle, a quantum computer with 300 qubits could perform more calculations in an instant than there are atoms in the visible universe.
-- IEEE Spectrum