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a model in which a computation is a sequence of quantum gates, which are reversible transformations on an n-qubit register (the quantum-mechanical analog of an n-bit register)

1 vote
1 answer
117 views

In the Bernstein-Vazirani algorithm, what is the use of the second Hadamard gate?

In the Bernstein-Vazirani algorithm, what is the use of the second Hadamard gate? What happens if I remove it? Would the algorithm works fine? I read something about it closing the interference.
n22's user avatar
  • 213
-1 votes
1 answer
108 views

Quantum ripple-carry adder construction

I am attempting to build a 2-bit ripple-carry adder, using IBM Quantum Experience composer, but I'm confused on how to construct the carry transpose that is shown at the bottom?
n22's user avatar
  • 213