Potential energy wells could help cold atoms charge quantum batteries shulz/iStockphoto/Getty Images
Extremely cold atoms tunnelling through a crystal made of light could create a stable quantum battery. This could solve a long-standing issue with quantum batteries – it would stop them leaking energy after they charge – and could help them offer an advantage over conventional batteries.
Quantum batteries extract energy from quantum processes, such as those involved in moving particles. Very few have been built and there is no consensus on a best design for them.
