Knowing that the bit flip gate X takes |0> to |1>, which of the below could be a valid matrix representation for the bit flip gate?
The answer is D):
Given that H (the Hadamard gate) acting on |0> produces |+>, i.e. H|0>=|+>, and that H|1> = |->, which of the following could be a valid matrix representation for the Hadamard gate?
The answer is C):