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cond-mat.str-el2023★ 17 cited
Kondo effect in the isotropic Heisenberg spin chain
Pradip Kattel, Parameshwar R. Pasnoori, J. H. Pixley +2
We investigate the boundary effects that arise when spin- impurities interact with the edges of the antiferromagnetic spin- Heisenberg chain through spin…
quant-ph2023★ 19 cited
Exact solution of a non-Hermitian -symmetric Heisenberg spin chain
Pradip Kattel, Parameshwar R. Pasnoori, Natan Andrei
We construct the exact solution of a non-Hermitian -symmetric isotropic Heisenberg spin chain with integrable boundary fields. We find that the system exhibits two ty…