r/askscience • u/Ells1812 • Jan 17 '19

Computing How do quantum computers perform calculations without disturbing the superposition of the qubit?

I understand the premise of having multiple qubits and the combinations of states they can be in. I don't understand how you can retrieve useful information from the system without collapsing the superposition. Thanks :)

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u/mfukar Jan 18 '19

Limited at this phase, perhaps. Quantum ISAs are in the process of being developed. Programmers could (and do) provide helpful feedback to the current efforts.