A tensor cross interpolation solver evaluates weak-coupling expansion integrals for quantum impurity problems up to 40th order and reproduces DMFT Mott physics.
Let us consider an M × N matrix A
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Tensor cross interpolation approach for quantum impurity problems based on the weak-coupling expansion
A tensor cross interpolation solver evaluates weak-coupling expansion integrals for quantum impurity problems up to 40th order and reproduces DMFT Mott physics.