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Optimized Lanczos method for finding eigenvalues of $A \otimes B$

The key note is to rewrite Kronecker's product as a matrix multiplication. At first, if we denote bases of $A$ as ${|a_{i}\rangle}$ and $B$ as ${|b_{i}\rangle}$ (apology if I used unconventional bra&...
Mohammad. Reza. Moghtader's user avatar

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