Quiz: Quantum Gates and Circuits

This quiz will test your understanding of quantum gates and circuits.

1

What happens when the Hadamard Gate HH is applied twice to a qubit that is in the ∣0⟩+∣1⟩2\frac{|0\rangle+|1\rangle}{\sqrt{2}} state?

A)

The qubit goes to state ∣−⟩|-\rangle.

B)

The qubit goes to state ∣+⟩|+\rangle.

C)

The qubit goes to state ∣++⟩|++\rangle.

D)

We cannot say for sure which state the qubit will end up in.

Question 1 of 50 attempted

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