Tiny magnetic waves could unlock quantum computers the size of a penny

Scientists have made a significant leap forward in quantum computing by stabilizing tiny magnetic waves called magnons, which could revolutionize how we build quantum computers. Previously dismissed due to their fleeting existence, these waves now have a lifespan extended almost 100 times longer, reaching up to 18 microseconds. This breakthrough suggests that the real hurdle isn't physics but material purity, hinting that future progress may hinge on advancements in manufacturing. This development could pave the way for quantum computers small enough to fit on a penny, bringing us closer to powerful, compact quantum computing.