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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."
an exciton is a combination of an electron and a hole in a semiconductor or insulator in an excited state
I love it when physicists talk dirty to me.
Please be advised that by posting this with my quantum computer, I am able to make all possible lewd comments about the above sentence simultaneously.
In Soviet Rush, today's Tom Sawyer gets high on you.
Damn, does this mean it's the physicists who will get jobs and the electrical engineers who will be unemployed?
Oh wait, we're both unemployed right now.
Was I the only person who read the line
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..
and thought "I'm sure I've seen that on a Powerpoint presentation somewhere". This is clearly uber-smart stuff by uber-smart people, but they are beginning to sound like clueless PHBs dressing things up in techno-babble.
Maybe this is the fundamental essence of quantum computers, something maybe smart or idiotic depending on the reader, the actual quality of work is only resolved when viewed by multiple individuals.
I hearby copyright the phrase Quantum-Powerpoint, and the resolution process of determining presentation value which I shall call "De-spinning Qubits"
An Eye for an Eye will make the whole world blind - Gandhi
Does it run Linux?
Bohring joke...
Can a NOT gate half not be?
Imagine a Beowulf cluster of these... :P
Excitons - the particle formed by the collision of Porntons and GNUtrons.
If they can harness the amazing power of the Gravitron, then I and Joe Sixpack will stand up and take notice.
This space for rent.
...were excited by light to create a quantum logical gate with four states.
Quantum computer? Great, it's in all four states at once. Gotta love a computer that gives you infinitely different results depending on what universe you're in.
(First application: generating airfares.)
And electrons trapped in the middle layer were excited by light to create a quantum logical gate with four states.
Sweet! Score one for the Star Trek universe. Suck it Star Wars.
Excitons to be Bohring.
ok, i'll kick my own ass for that one.
Since a Quantum computer can process millions of operations *simultaneously*, how much do I need to pay a million-CPU licence from SCO if I want to use Linux ?
Ok, so if we pair electrons and holes, we get excitons. But what do we get when we pair protons and neutrons? Do we get hardons?
In quantum physics, yes. Although you can't be certain of it.
the joke in the parent post is funny.
I'm going to go sit in a corner and weep, now.
*honk*
This is my sig. It's prescription, I swear. I need it for reading things... on the other side of things
I'd imagine you are used to 'people like me', which is the set of people with more of a clue than you - i.e. about 6 billion people.
In related news have you been to Africa recently?
That's great. I suppose I'll hold off on getting that 3.0 GHz machine I was looking at, then. How big is the hard drive gonna be?
"We shall party like the Greeks of old! You know the ones I mean." - HedonismBot