Resumen de Revamped qubit may bring faster computing
Andrea Morello at the University of New South Wales in Australia and his team have a design for a qubit--the smallest unit of quantum information--that could get round some of the difficulties of making quantum computers at an atomic scale. Silicon quantum systems allow little room for electronics because qubits have to be so close to each other to communicate--about 10 or 20 nanometers apart. But by combining an electron and a nucleus in one qubit, Morello and his team think they have found a way to let qubits communicate over distances of up to 500 nanometers. Qubits in silicon systems interact through electric fields, and Morello's team shows that it's possible to extend their reach by pulling the electron further away from the nucleus of each atom
