Zeptojoule Nanomagnetic Switch Measures Fundamental Limit of Computing – IEEE Spectrum

No matter how efficient we make our transistors and memory cells, they will always consume a fixed but tiny amount of energy set by the second law of thermodynamics, a new study suggests. Now the question is how close our real-world devices can get to this fundamental value.

“At the end of the day, it confirms that Landauer’s theory seems to be correct, that there is a minimum amount of energy that one can’t get below,” says Bokor. Still, he adds, we’re nowhere close to zeptojoule switches: “The computers that we have today operate far far from this Landauer limit, probably on the order of a million times more energy per operation than what Landauer showed.”

http://spectrum.ieee.org/tech-talk/semiconductors/devices/zeptojoule-nanomagnetic-switch-supports-fundamental-limit-of-computing

Posted from WordPress for Android