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Building Projection Operators Onto Subspaces
Intro
In quantum mechanics one uses projection operators in many problems / derivations.
At the problem at hand I need to build projection operators (matrices) onto a subspace of my Hilbert space. I ...
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How to construct — based on physics-type notation — a magical simplex $\mathcal{W}$ of bipartite qutrits?
I have a short Mathematica program:
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