Unable to perform assignment because the size of the left side is 4-by-4 and the size of the right side is 2-by-4.
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Hello,
I am trying to create block diagonal if dimension d is greater than 2. However I have this error:
Unable to perform assignment because the size of the left side is 4-by-4 and the size of the right side is 2-by-4.
My code is here:
function [A,B] = CH2d(d)
A=zeros(d,d,2,d);
B=A;
projectors_of_sigma_x = [1/sqrt(2)*[1;1],1/sqrt(2)*[1;-1]];
for k = 1:d
for l =1:d
if d > 2
A(:,:,1,k) = blkdiag(A(:,:,1,k));
end
A(:,:,1,k)=repmat(projectors_of_sigma_x(:,k),1,d);
end
end
end
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