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Computer scientists have been searching for years for a type of problem that a quantum computer can solve but that any possible future classical computer cannot. Now they’ve found one.
The quest for “quantum supremacy” – unambiguous proof that a quantum computer does something faster than an ordinary computer – has paradoxically led to a boom in quasi-quantum classical algorithms.
The fusion of quantum computing and machine learning has become a booming research area. Can it possibly live up to its high expectations?
Quantum computers should soon be able to beat classical computers at certain basic tasks. But before they’re truly powerful, researchers have to overcome a number of fundamental roadblocks.
A complete classification could lead to a wealth of new materials and technologies. But some exotic phases continue to resist understanding.
A new paper claims that a common digital security system could be tweaked to withstand attacks even from a powerful quantum computer.