A 1000 qubit quantum computer is the next step up from the current state of the art quantum computers with 49 qubits. It is not only the number of qubits that is important, but also the quality of the qubits. The quality of the qubits is measured by the fidelity, which is the measure of how close the actual quantum state is to the target quantum state.

The current state of the art quantum computers have a fidelity of about 99%. This means that if you set up a quantum state with 1000 qubits, only 99 of them would be …