This environmentally friendly quantum sensor runs on sunlight
Trading power-hungry lasers for sunlight is a first step toward sustainable quantum tech
![tweezers hold a diamond sensor as light shines through](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/09/091522_jr_green-quantum-tech_feat.jpg?fit=1030%2C580&ssl=1)
Light shines through a diamond sensor that is the heart of a sunlight-powered quantum device that measures magnetic fields.
Yunbin Zhu/University of Science and Technology of China