Phys.org November 14, 2022 Neuro-inspired models can transform synthetic gene circuit design in a manner that is reliable, efficient in resource utilization, and readily reconfigurable for different tasks. To this end, an international team of researchers (Israel, USA – MIT) has introduced the perceptgene, a perceptron that computes in the logarithmic domain, which enables efficient implementation of artificial neural networks in Escherichia coli cells. They successfully modified perceptgene parameters to create devices that encode a minimum, maximum, and average of analog inputs. With these devices, they created multi-layer perceptgene circuits that compute a soft majority function, perform an analog-to-digital conversion, […]
Tag Archives: Neural computing
Lightmatter’s Mars Chip Performs Neural-Network Calculations at the Speed of Light
IEEE Spectrum August 29, 2020 To perform neural-network calculations faster and more efficiently based on optical computing researchers in the US (industry) have built Mars device which has at its heart a chip that includes an analog optical processor, designed specifically to perform the mathematical operations that are fundamental to neural networks. The key optical processor is shrunk to nanometers and integrated them together on one chip for the purpose of speeding up neural-network calculations. The interferometer splits incoming light into two beams, which then take two different paths. The resulting two beams are then recombined. If the two paths […]
Engineers put tens of thousands of artificial brain synapses on a single chip
MIT News June 8, 2020 To make memristors an international team of researchers (USA – MIT, Lawrence Berkeley National Laboratory, IBM, China, South Korea) first fabricated a negative electrode out of silicon, a positive electrode by depositing a slight amount of copper, followed by a layer of silver. They sandwiched the two electrodes around an amorphous silicon medium patterning a millimeter-square silicon chip with tens of thousands of memristors. When they ran the chip through several visual tasks, the chip was able to “remember” stored images and reproduce them many times over, in versions that were crisper, and cleaner compared […]
‘Connecting the dots’ for quantum networks
Science Daily July 9, 2019 For quantum dots to “communicate”, they must emit light at the same wavelength. The size of a quantum dot determines this emission wavelength. Instead of making quantum dots perfectly identical to begin with, researchers at the US Naval Research Laboratory change their wavelength afterwards by shrink-wrapping them with laser-crystallized hafnium oxide, squeezing the quantum dots, which shifts their wavelength in a very controllable way. Doing this for many quantum dots in an integrated circuit, could be used for optical, rather than electrical computing. The technique could accelerate the development of quantum information technologies and brain-inspired […]