Science

How the megaquop machine could usher in a new era of quantum computing

John Preskill has set a challenge for the quantum computing industry

Gregg Segal

The past decade has seen significant advances and investment in quantum computing, and yet the devices we have today essentially have no practical purpose. That is down to two main reasons – the first being that the qubits, or quantum bits, that make up today’s machines still struggle with noise, or errors, that we are only just learning to correct. The second is that devices that could solve practical problems are expected to require many more qubits than even the biggest quantum computers currently have.

In 2018, …


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