We are pleased to share that two recent papers from our group were selected as Editors’ Suggestions in Physical Review B, marking a rare and exciting back-to-back recognition.
The works are authored by Pradip Kattel and Natan Andrei, in collaboration with Parameshwar R. Pasnoori (a former member of our group) and Prof. J. H. Pixley. These results advance our understanding of quantum impurity physics and non-Hermitian spin chains, providing exactly solvable models and new insights into edge phenomena and screening in open quantum systems.
đź“ť Publications
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Edge modes and boundary impurities in the anisotropic Heisenberg spin chain
Phys. Rev. B 111, 174430 (2025)
Published: May 19, 2025
→ Unveils exotic boundary phases and fractional spin modes in anisotropic spin chains. -
Spin chain with non-Hermitian đť’«đť’Ż-symmetric boundary couplings: Exact solution, dissipative Kondo effect, and phase transitions on the edge
Phys. Rev. B 111, 224407 (2025)
Published: June 4, 2025
→ Provides an exact solution of a PT-symmetric non-Hermitian Heisenberg model with boundary Kondo couplings, validated by DMRG.
We congratulate the authors for this outstanding recognition and for continuing the group’s tradition of exact and conceptually rich work in quantum many-body physics.