Quantum Computing Is Finally Here. But What Is It?: QuickTake

Four decades ago, computer engineers were theorizing that the mind-bending mechanics of quantum physics could be harnessed to make a new kind of computer that’s exponentially more powerful than conventional machines. A series of breakthroughs has now brought “quantum utility” within reach, with engineers showing off computers capable of calculations that would confound the most powerful supercomputers. A race is on to develop bigger machines that can accurately model the behavior of complex real-world phenomena and deliver a leap forward in fields as varied as drug development, financial modeling and artificial intelligence.

1. What’s the appeal of quantum computers? ...