Qubit Watch

Tracking the Qubit Count of leading and emerging companies in the Quantum Computing sector as we race towards a quantum future
Qubit Watch

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 Google 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