Quantum computer called possible with today's tech

from the spin-dots dept.
waynerad writes "Researchers at the University of Wisconsin in Madison claim to have created the world's first successful simulation of a quantum-computer architecture that uses existing silicon fabrication techniques. By harnessing both vertical and horizontal tunneling through dual top and bottom gates, the architecture lays out interacting, 50-nanometer-square, single-electron quantum dots across a chip. The group of researchers has concluded that existing silicon fabrication equipment can be used to create quantum computers, albeit at only megahertz speeds today due to the stringent requirements of its pulse generators."