Even such simple markers, when enough are strung together, can give computers incredibly complex directions.īut quantum computers use quantum digits, or qubits. These bits are binary, meaning they signal either 1 or 0. The smallest unit of information read by a conventional computer is a binary digit, or a bit. The breakthrough has to do with the way computers manipulate information. That has implications for everything from the efficacy of Google's search algorithms to your online bank accounts and password-protected emails to the secrets kept by the National Security Agency. To cite just one example, an encryption that would take a super computer days to crack could, as so-called quantum computers come online, take a matter of seconds. But for now, trust us when we say the work will likely upend the way the world uses the Internet for tasks as routine as sending an email or making a purchase, or as complex as the national security-level encryption that keeps the nation's secrets secret. We'll dive into the details further below. Just how it will do that is complicated, as it involves the marriage of information science and quantum mechanics, and some of the oldest puzzles in theoretical physics.
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