4 ms·
What is the benchmark to have something useful for real-world use in number of qbits?
by germandiago 2y ago
What is the benchmark to have something useful for real-world use in number of qbits?
- vtomole 2y ago20 million physical qubits to break RSA 2048: https://quantum-journal.org/papers/q-2021-04-15-433/ https://quantum-journal.org/papers/q-2021-04-15-433/.
- ziofill 2y agoPhysicist here. It highly depends on a bunch of factors (the type of qubits, the error correcting code, the error rate, the algorithm…), but a ballpark number for practical usefulness is 1 million physical qubits. Keep in mind that qubit requirements keep tumbling down as people work hard to squeeze out as much as possible from a limited number of qubits.