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Quantum Logic Gate Created Using Excitons
Roland Piquepaille writes "In this article, PhysicsWeb reports that researchers in the U.S. "have taken another important step towards making a quantum computer. [They] have created a logic gate using two electron-hole pairs -- also known as "excitons" -- in a quantum dot." According to Wikipedia, "an exciton is a combination of an electron and a hole in a semiconductor or insulator in an excited state These physicists from the University of Michigan and other labs made a quantum dot by using a thin gallium arsenide layer stuck between two aluminium gallium arsenide barriers. And electrons trapped in the middle layer were excited by light to create a quantum logical gate with four states. The group says this could be useful "in other approaches to quantum computing based on the optical control of electron-spin qubits in quantum dots.." This summary contains more details."
These physicists from the University of Michigan and other labs made a quantum dot by using a thin gallium arsenide layer stuck between two aluminium gallium arsenide barriers.
A major advance in quantum computing is nice and all. But, would it kill U of M to get another college football (real / american) national championship? I mean, Ohio State's got a shiney new one. Ours is from 1997.
Sigh. Such is the mentality. (thankfully it's not a prevalent at U of M as it is at other universities)
There are some people that if they don't know, you can't tell 'em.
In Quantum Computation, A C-NOT gate is infact universal. So why would they need to 'go for' a NAND or a NOR?
In future, before blessing us with your wisdom, please give yourself a quick slap with the clue stick - you cock monkey.
Hopefully, your ego will now be crushed down to a level suitably low enough that you will no longer bother us with your poorly understood 'observations'.