Every day, people rely on computer chips to keep sensitive information safe. These tiny pieces of hardware help protect everything from online banking details and personal data to government and military secrets. But new research suggests that some chips could contain hidden threats that are almost impossible to detect using current security methods. Researchers from […]

The post Scientists discover invisible hardware trojans lurking inside computer chips appeared first on Knowridge Science Report.

Artificial intelligence is becoming increasingly skilled at understanding the world around it, but new research suggests it still has a major weakness: reading human facial expressions. Researchers at Cornell University have been exploring ways to give robots greater social intelligence so they can work more effectively alongside people. Social intelligence allows humans to read facial […]

The post Why robots struggle to understand human facial expressions appeared first on Knowridge Science Report.

With dozens of companies, from small startups to tech giants, pursuing quantum computing, there's a steady flow of results as they try to find a path to utility. We typically focus on new technologies and major landmarks, which can obscure the fact that any big success will inevitably have been built on a lot of incremental progress.

The past few weeks have seen two companies release progress reports on how they're trying to get the technologies closer to general use. None of these represents a major breakthrough, but all are absolutely necessary for the technology to advance. The idea here is to convey the hard work required to move us closer to something useful.

Microsoft does material science

Microsoft is one of the few companies working on topological qubits, based on the distinct physics that occurs when particles are confined. Microsoft's system relies on a thin superconducting wire placed on top of a semiconductor. In superconductors, groups of two electrons form Cooper pairs. But if the wire contains an odd number of conducting electrons—meaning there's a single unpaired electron—it will end up delocalized to both ends of the wire. (Because quantum mechanics is weird.)

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What Garnet Chan cares most about is basic science. He entered chemistry decades ago to understand some of the most consequential biochemical processes on Earth. But since then, he’s become a central figure in a different arena: the debate over whether quantum computers will have a decisive advantage over ordinary “classical” ones. Over the past decade, many quantum computing researchers have…

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