1.4k citations · 3.5k across the 45 of their papers we have counts for
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Spin-1 two-impurity Kondo problem on a lattice
A. Allerdt, R. Zitko, A. E. Feiguin
We present an extensive study of the two-impurity Kondo problem for spin-1 adatoms on square lattice using an exact canonical transformation to map the problem onto an effective on…
Chiral liquid phase of simple quantum magnets
Zhentao Wang, Adrian E. Feiguin, Wei Zhu +3
We study a quantum phase transition between a quantum paramagnetic state and a magnetically ordered state for a spin XXZ Heisenberg antiferromagnet on a two-dimensional…
Efficiency of fermionic quantum distillation
J. Herbrych, A. E. Feiguin, E. Dagotto +1
We present a time-dependent density-matrix renormalization group investigation of the quantum distillation process within the Fermi--Hubbard model on a quasi-1D ladder geometry. Th…
Spatial structure of correlations around a quantum impurity at the edge of a two-dimensional topological insulator
Andrew Allerdt, Adrian E. Feiguin, George B. Martins
We calculate exact zero-temperature real space properties of a substitutional magnetic impurity coupled to the edge of a zigzag silicene-like nanoribbon. Using a Lanczos transforma…
Unveiling the internal entanglement structure of the Kondo singlet
Chun Yang, Adrian E. Feiguin
We disentangle all the individual degrees of freedom in the quantum impurity problem to deconstruct the Kondo singlet, both in real and energy space, by studying the contribution o…