A quantum computer isn t like the PC on your desk or the phone in your pocket.

It stores data in what s called a qubit, and thanks to the principle of superpositione, each qubit can store a 1 and a 0 at the same time.

That means two qubits can store four values at once: 00, 01, 10, and 11.

And if we keep adding qubits, we can build a machine that s exponentially more powerful than today s classical models.

We haven t quite done this yet, but we have prototypes.

Google Tests New Crypto in Chrome to Fend Off Quantum Attacks

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