How do quantum computers work?

TL;DR - Nature provides an overview of how quantum computers work and reports that recent breakthroughs could make usable devices possible within a decade. The limited excerpt does not specify the underlying advances.

• Explains the operating principles of quantum computers.
• Frames recent breakthroughs as progress toward practical systems.
• Estimates usable quantum devices could arrive within roughly ten years.
• No specific hardware, algorithms, or experimental results are provided in the excerpt.