Introduction to Quantum Computing
Quantum computers are difficult to compare.
"Quantum volume is a metric that measures the capabilities and error rates of a quantum computer. It expresses the maximum size of square quantum circuits that can be implemented successfully by the computer."
"Quantum volume is a single number designed to show all around performance. It is a measurement and not a calculation, and takes into account several features of a quantum computer, starting with its number of qubits. Other measures used are gate and measurement errors, crosstalk and connectivity."
The importance of quantum volume is that it provides an indication of the complexity of the problem a quantum computer can be expected to solve.
References:
- Quantum Volume:
https://en.wikipedia.org/wiki/Quantum_volume - Measuring Quantum Volume:
https://learn.qiskit.org/course/quantum-hardware/measuring-quantum-volume - How Can I Construct a Quantum Volume Circuit?:
https://www.youtube.com/watch?v=KPxvgw9GG0s - Quantum Volume:
https://qiskit.org/documentation/stubs/qiskit.circuit.library.QuantumVolume.html - Validating quantum computers using randomized model circuits, (2019), Cross, A.W., Bishop, L.S., Sheldon, S., Nation, P.D., and Gambetta, J.M., Phys. Rev. A, Vol 100, Issue 3,
https://link.aps.org/doi/10.1103/PhysRevA.100.032328 - Qiskit:
https://qiskit.org