Those that solve artificially simplified problems where quantum advantage is meaningless. Those that provide no genuine quantum advantage when all costs are properly accounted for. This critique is ...

Abstract: As the most fundamental type of matrix equation, the Sylvester equation has been widely applied in control theory, signal processing, and many other scientific fields in recent years. The ...

Abstract: This article presents a method to simultaneously determine multiple microwave signals using the hole-burning effect based on nitrogen-vacancy (NV) centers in diamonds. Tracking the anomalous ...