【NHK】"Quantum computers" are said to greatly change society as "next-generation computers". Orders of magnitude higher computing power than conventional computers ...Quantum computers are said to change society as the "next-generation computer." With its computing power that is orders of magnitude higher than that of conventional computers, it is expected to solve various problems such as the development of new drugs and forecasting financial markets. What is different from conventional computers? We will explain how it works and the challenges for practical