qml.math.decomposition.su2su2_to_tensor_products

su2su2_to_tensor_products(U)

Given a matrix \(U = A \otimes B\) in SU(2) x SU(2), extract A and B

This process has been described in detail in the Appendix of Coffey & Deiotte https://link.springer.com/article/10.1007/s11128-009-0156-3

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