zero = [1; 0]
one = [0; 1]
plus = [1/sqrt(2); 1/sqrt(2)]
minus = [1/sqrt(2); -1/sqrt(2)]
X = [0 1; 1 0]
Z = [1 0; 0 -1]
H = [1/sqrt(2) 1/sqrt(2); 1/sqrt(2) -1/sqrt(2)]
CNOT = [1 0 0 0; 0 1 0 0; 0 0 0 1; 0 0 1 0]
