[[https://quantum-computing.ibm.com/|
IBM Quantum Computing]]

[[https://interestingengineering.com/innovation/chinese-quantum-computer-180-million-times-faster|
China's photonic quantum computer is 180 million times faster says 'father of quantum']]

[[https://interestingengineering.com/science/quantum-computer-can-remember-its-past|
Quantum computer creates particle that can remember its past]]


[[https://www.youtube.com/watch?v=oZacBmOwvz0|
How to Build a Qubit]]


[[https://www.schneier.com/blog/archives/2022/02/breaking-245-bit-elliptic-curve-encryption-with-a-quantum-computer.html|Breaking 256-bit Elliptic Curve Encryption with a Quantum Computer]]

Breaking 256-bit Elliptic Curve Encryption with a Quantum Computer

Researchers have calculated the quantum computer size necessary to break 256-bit elliptic curve public-key cryptography:

Finally, we calculate the number of physical qubits required to break the 256-bit elliptic curve encryption of keys in the Bitcoin network within the small available time frame in which it would actually pose a threat to do so. It would require 317 × 106 physical qubits to break the encryption within one hour using the surface code, a code cycle time of 1 μs, a reaction time of 10 μs, and a physical gate error of 10-3. To instead break the encryption within one day, it would require 13 × 106 physical qubits.

In other words: no time soon. Not even remotely soon. IBM’s largest ever superconducting quantum computer is 127 physical qubits.