Tutorials for Quantum Computer Lecture: EDITOR

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Lecture Quantum Computing

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Task Editor Run Output of Solution Solution

Pick out of three

We want an equal probability of choosing out of three options. So create a method that produces the state 1/sqrt(3)*(|00>+|01>+|10>).

Editor

Please use the following editor for your exercise. You can run the content of the editor by clicking on the tab 'Run'...

def specialSuperposition(){ (q₀,q₁):=(1:𝔹,1:𝔹); done:=false; while !done{ measure(q₀,q₁); (q₀,q₁):=(H(0:𝔹),H(0:𝔹)); done=!measure(q₀&q₁); } return (q₀,q₁); } def main(){ return specialSuperposition(); }

Output of Editor Content

The result of running the editor content is as follows:

Output of the Solution

The output of the solution is as follows:

Solution

Please have a look at the solution only after you have finished working on your own solution. Otherwise the learn effect is much less.

def specialSuperposition(){
	(q₀,q₁):=(1:𝔹,1:𝔹);
	done:=false;
	while !done{
		measure(q₀,q₁);
		(q₀,q₁):=(H(0:𝔹),H(0:𝔹));
		done=!measure(q₀&q₁);
	}
	return (q₀,q₁);
}

def main(){
    return specialSuperposition();
}

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