量子计算

Crypto companies are updating their wallets to guard against potential quantum computing risks to major networks like Bitcoin and Ethereum.

May 05, 2026 由 AI 报道

Scientists at California Polytechnic State University have discovered new forms of quantum matter by varying magnetic fields over time. The breakthrough, detailed in Physical Review B, shows that time-dependent control can produce stable quantum states without static equivalents. This could advance quantum computing by making systems more resistant to errors.

A new analysis indicates that two key quantum computing algorithms for chemistry problems have limited practical use, even with advancing hardware. Researchers suggest that calculating molecular energy levels may not justify the technology's investment as hoped. This challenges the view of quantum chemistry as a major application for quantum computers.

March 05, 2026 由 AI 报道

Researchers have created a molecule with a novel topology resembling a half-Möbius strip, requiring four loops to return to the starting point. The structure, made from 13 carbon atoms and two chlorine atoms, was assembled on a gold surface at low temperatures. This discovery highlights potential advances in molecular engineering and quantum simulations.

Researchers at the Norwegian University of Science and Technology believe they have spotted signs of a triplet superconductor in the niobium-rhenium alloy NbRe. This material could transmit both electricity and electron spin without resistance, potentially advancing quantum computing. The finding, if confirmed, might stabilize quantum devices and reduce their energy consumption.

February 20, 2026 由 AI 报道

中国研究人员通过控制量子系统中暂时的稳定阶段，实现了量子混沌的减速，这一被称为预热化的现象为保存量子信息提供了可能途径。该技术允许研究人员“调整”量子退相干的速度，为管理复杂量子环境提供了重要工具。