"In order to have any effect on bitcoin or most other financial systems it would take at least about 1500 qubits and the system must allow for the entanglement of all of them," "By comparison, Google's measly 53 qubits are still no match for this kind of cryptography."
https://hackernoon.com/quantum-computing-and-blockchain-facts-and-myths-l71w28d2For faster quantum computing, Microsoft builds a better qubit - Microsoft's new approach to quantum computing is "very close," an executive says.
"We've really spent the recent few years developing that technology," Krysta Svore, general manager of Microsoft's quantum computing software work, said Thursday after a talk at the IEEE International Conference on Rebooting Computing. "We believe we're very close to having that." Specifically, she thinks one logical qubit will require 10 to 100 physical qubits with Microsoft's topological qubits. That compares to something like 1,000 to 20,000 physical qubits for other approaches.
https://www.cnet.com/news/for-faster-quantum-computing-microsoft-builds-a-better-qubit/Can somebody explain, please? 1,500 qubits required and Microsoft will have 1,000 to 20,000?
