Imagine a battery that doesn’t rely on chemical reactions, doesn’t lose energy, and can power the next generation of ultra-powerful computers — quantum computers . This vision has just become reality. Scientists have successfully created the world’s first quantum phase battery , marking a monumental step in the journey toward fully functional quantum technologies. The battery, developed by Francesco Giazotto and Elia Strambini from the NEST-CNR Institute in Pisa, Italy , represents a completely new way of thinking about energy and computation. It’s made from an indium arsenide (InAs) nanowire in contact with aluminum superconducting leads — a design that enables it to produce energy in the quantum realm. This achievement doesn’t just improve batteries; it redefines them entirely. Quantum Computing: A Brief Refresher To understand why this is such a breakthrough, it helps to know what quantum computing is. Unlike traditional computers, which use bits (0s and 1s) to process dat...