fter watching China overtake its lead in artificial intelligence, the US is determined to keep the global top spot in quantum technology.

Two separate pieces of legislation being floated in Congress would boost federal spending on quantum research and encourage more public-private partnerships in the field. A big focus of the legislative proposals is on quantum computing, which could eventually produce machines that make today’s most powerful supercomputer seem like an abacus.

Unlike conventional machines, which process data in bits that represent either 0 or 1, quantum computers harness quantum bits, or qubits, which can represent both values simultaneously. While adding a few extra bits to a classical computer makes a modest difference in its capability, adding a few qubits increases a quantum machine’s computational power exponentially.

The complex technology is still in its infancy, but it’s advancing fast (see “Serious quantum computers are finally here. What are we going to do with them?”). In the future,
quantum technology could help researchers develop new materials, create new molecules for drugs, and produce super-powerful sensors for things like oil exploration. The technology also has big implications for national security: quantum computers could help crack even the most advanced encryption in use today, and they could create new, virtually unbreakable communication networks.

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