What's New in Quantum Computing? 2023 UpdateShe makes it sound as if a lot has happened in the last two years, but not really.
There is still no true qubit. A researcher may claim to have a functional equivalent of 50 qubits, but he does not even have one logical qubit.
There is still no convincing demonstration of quantum supremacy. Some say quantum advantage, but no convincing example of that either.
There is still no quantum computer to solve a problem. The claims are based on generating random numbers in a way that is hard to simulate.
Compare all this to the hype reported here, such as Google's Neven's Law, which said in June 2019 that quantum computers were advancing doubly exponentially. If that were true, then we would have a convincing example of quantum supremacy by now.
Unless it is impossible, of course.
Happy Columbus Day. The 1492 Columbus discovery of the Americas was one of the greatest events in the history of the world. Without that, where would science be?