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If the first qubit is in the state 13√|0⟩+2√3√|1⟩ and the second qubit is in the state 2√3√|0⟩+13√|1... Suppose that a qubit is in the state |ψ> = a |0> + √ (1-a^2)|1> where a [-1,1] . If we first perfo... Suppose we have a qubit in the state |ψ>. We know that if we measure it in the standard basis, the... Consider a qubit subject to the Hamiltonian (1 4 4 1). Calculate the states of defin... 8(a) Consider a spin qubit in the state 3ã2|0⟩+12|1⟩. What are the coordinates (ƒÆ,ϕ) of this qubit...