Skyler Ware is a freelance science journalist covering chemistry, biology, paleontology and Earth science. She was a 2023 AAAS Mass Media Science and Engineering Fellow at Science News. Her work has also appeared in Science News Explores, ZME Science and Chembites, among others. Skyler has a Ph.D. in chemistry from Caltech.
By walking a tightrope between order and chaos, researchers could one day make computer chips work more like the human brain.
A computer chip operating at the edge of chaos sounds like it might break down at any moment. But many researchers have theorized that the human brain operates on a similar principle. Axons range from 0.04 inches to more than 3 feet in length. Transmitting an electrical signal across a wire of the same length leads to signal loss, caused by the resistance of the wire. Computer chip designers get around that issue by inserting amplifiers between shorter wires to boost the signal.
In the new study, scientists mimicked this self-amplifying behavior in a non-biological system. They first established edge-of-chaos conditions on a material called lanthanum cobaltite . When they applied the right current to the LaCoO3, small fluctuations in the resulting voltage were amplified. The team then tested the conditions on a wire in contact with a sheet of LaCoO3.
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