Hybrid quantum-classical computer system and method for performing function inversion

This invention describes a way to figure out the original input to a mathematical function, given only its output. It uses a combination of a regular computer and a quantum computer. The regular computer sets up the problem as a puzzle for the quantum computer, which then uses its unique properties to find the most likely input that would produce the given output, specifically for Boolean functions matching a seed output.

Why it matters: Since 2019, quantum computing hardware has advanced in qubit count and stability, and hybrid classical-quantum algorithms have matured. This makes the quantum optimization component more feasible to implement on current noisy quantum devices.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedQuantum hardware, specialized software, quantum algorithms

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