An old physics demon could be the future of quantum computing

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The field of quantum computing is at an inflection point. The past haunts those who fear another quantum winter – a period when research dies of neglect as funding cools. However, there’s an unofficial club full of optimists who are, quite literally, willing to take on quantum’s demons.

A team of researchers at Penn State just realized, in the physical world, a famous thought experiment called Maxwell’s Demon. This is a big deal for quantum computers. It could aid in resolving one of the biggest problems with quantum computing: Entropy, in the form of noisy qubits.

You can read our guide to understanding the basics of quantum computing here

In 1867 renowned physicist James Maxwell proposed a thought experiment where


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