Quantum computer chip crams more info into less volume – by vibrating

Quantum computing has always struggled to achieve the necessary division of labor between processing and memory.

The researchers say this could fit much more quantum information into a smaller space than electromagnetic memory, while keeping the information stable.

Instead of storing the quantum state as light, they used sound.

phonons, to hold quantum information.

If those efforts pan out, the result could be hardware-efficient quantum random-access memory that eliminates the need for bulky electromagnetic components.