Toshiba Corporation (Toshiba) has confirmed a breakthrough technology that promises to advance progress toward the development of higher-performance quantum computers through an investigation of a potential major advance in quantum computing. Experiments conducted by a joint research group from Toshiba and RIKEN, one of Japan’s largest comprehensive research institutions, have successfully realized a Double-Transmon Coupler, a solution for superconducting quantum computers initially proposed by Toshiba. The researchers achieved a world-class fidelity of 99.90% for a two-qubit gate, which is at the heart of quantum computation. Fidelity is a standard performance indicator for quantum gates, quantifying how close an operation is to the ideal in a range from 0% to 100%, with higher percentages indicating greater accuracy in the quantum gate's operation.

In nano-scale electronic circuits, the phenomenon of ‘quantum interference’ between electrons can lead to states where electrons appear to split.

The National Academy of Sciences (NAS) has awarded the prestigious Comstock Prize in Physics to Yale researchers Michel Devoret and Robert Schoelkopf for their groundbreaking work in quantum information processing and related fields.