By NATIONAL INSTITUTES OF NATURAL SCIENCES A research team succeeded in executing the world’s fastest two-qubit gate (a fundamental arithmetic element essential for quantum computing) using a completely new method of manipulating, with an ultrafast laser, micrometer-spaced atoms cooled to absolute zero temperature. For the past two decades, all quantum computer hardware has been pursuing faster gates to escape the effects of external noise that can degrade computational accuracy. Cold-atom-based … Continue reading World’s fastest 2-qubit gate: Breakthrough for the realization of ultrafast quantum computers