Graphene could create a computer brain

Flakes of #graphene might be the the key to building computer chips that can processes information similar to human brain does – not your brain of course, or mine, but a better class of brain .

The technology is centred on neuromorphic chips which are made up of networks of transistors that interact the way human neurons do. This means that they can process analog input, such as visual information, quicker and more accurately than traditional chips.

Bhavin Shastri, a postdoctoral fellow in electrical engineering at Princeton University said that one way of building such transistors is to construct them of lasers that rely on an encoding approach called “spiking.”

Depending on the input, the laser can provide a brief spike in its output of photons or not respond at all. Instead of using the on or off state of the transistor to represent the 1s and 0s of digital data, these neural transistors rely on the time intervals between spikes.

Shastri said: “We’re essentially using time as a way of encoding information. Computation is based on the spatial and temporal positions of the pulses. This is sort of the fundamental way neurons communicate with other neurons.”

http://www.techeye.net/news/graphene-could-create-a-computer-brain