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# Tag Info

## Hot answers tagged stoquatic-matrices

1 vote

### Is it possible to find a 2x2 Hermitian matrix whose eigenvalues have 1:2 ratio?

Yes. This can be done for example by placing the desired eigenvalues along the diagonal $$\begin{bmatrix} 1 & 0 \\ 0 & 2 \end{bmatrix}$$ since all real diagonal matrices are Hermitian. More ...
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