John Preskill is a contributing columnist for Quanta Magazine. Read his October 2 column Why I Called It ‘Quantum Supremacy’
James O’Brien for Quanta Magazine
A recent paper from Google’s quantum computing lab announced that the company had achieved quantum supremacy. Everyone has been talking about it, but what does it all mean?
In 2012, I proposed the term “quantum supremacy” to describe the point where quantum computers can do things that classical computers can’t, regardless of whether those tasks are useful. With that new term, I wanted to emphasize that this is a privileged time in the history of our planet, when information technologies based on principles of quantum physics are ascendant.
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