A spectroscopy scheme combining transfer matrices, HOTRG coarse graining, impurity tensor networks, and Luescher's formula is demonstrated on the (1+1)d Ising model, reproducing low-lying energy gaps and the elastic phase shift.
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Spectroscopy using tensor renormalization group method
A spectroscopy scheme combining transfer matrices, HOTRG coarse graining, impurity tensor networks, and Luescher's formula is demonstrated on the (1+1)d Ising model, reproducing low-lying energy gaps and the elastic phase shift.