Scientists say quantum tech has reached its transistor moment - Science Daily

We’re sharing this article early to provide faster access to peer-reviewed, accepted research. It is citable and carries a permanent DOI. This version is subject to further edits and will be replaced automatically by the final Version of Record. All legal disclaimers apply. AbstractThis study presents an innovative 10-transistor reversible full adder (FA) architecture featuring two garbage outputs (GOs) and no constant inputs (CIs). The design integrates three reversible logic gates across two operational stages, implemented using the gate diffusion input (GDI) methodology. Specifically, it employs two Feynman gates alongside a newly developed GDI-based reversible multiplexer (R-MUX-GDI) to produce the Sum and Carry-out (Cout) signals. The 3 × 3 multiplexer, with two GOs and only two transistors, substantially minimizes the circuit’s footprint. The input configuration is strategically designed to limit excessive GOs. When incorporated into a ripple carry adder (RCA) for image processing, the proposed FA demonstrates exceptional performance in terms of area efficiency, power consumption, and output image quality.

How small can a transistor actually get? And is smaller even still the goal?

A new silicon carbide transistor is designed to avoid low controllability and current leakage, which typically become problematic at high temperatures.

A massive asteroid slammed into the North Sea roughly 43 to 46 million years ago, triggering a tsunami more than 100 meters (330 feet) high. Now, after more than two decades of scientific disagreement, researchers have uncovered compelling evidence confirming the ancient collision. The impact created what is now known as the Silverpit Crater, a massive structure buried deep beneath the seafloor. Although scientists first discovered it in 2002, its origins remained fiercely debated, with some researchers arguing that geological processes, rather than an object from space, were responsible.

As the U. S. and Europe increasingly shift away from animal research, organoids have been touted as a promising alternative method for studying the brain. The field has made significant progress since human brain organoids debuted in 2013. Researchers can now coax these clusters, fashioned from stem cells, to integrate a variety of cell types, including microglia, astrocytes and interneurons. They can even fuse brain-region-specific organoids into structures called assembloids that closely resemble circuits within the brain.