342 citations · 1.2k across the 33 of their papers we have counts for
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Density Matrix Renormalization: A Review of the Method and its Applications
Karen Hallberg
The Density Matrix Renormalization Group (DMRG) has become a powerful numerical method that can be applied to low-dimensional strongly correlated fermionic and bosonic systems. It…
Mirages and enhanced magnetic interactions in quantum corrals
A. Correa, K. Hallberg, C. A. Balseiro
We develop a theory for the interactions between magnetic impurities in nanoscopic systems. The case of impurities in quantum corrals built on the (111) Cu surface is analyzed in d…
Spectroscopic and magnetic mirages of impurities in nanoscopic systems
K. Hallberg, A. Correa, C. A. Balseiro
We present exact results for magnetic impurities in nanoscopic systems with focusing properties. We analyze the spectroscopic and magnetic properties of Kondo, intermediate valence…
Density Matrix Renormalization
Karen Hallberg
The Density Matrix Renormalization Group (DMRG) has become a powerful numerical method that can be applied to low-dimensional strongly correlated fermionic and bosonic systems. It…
Superconductivity and Topological Numbers in the Hubbard Chain with Bond-Charge Interaction
A. A. Aligia, K. Hallberg, C. D. Batista +1
We determine the quantum phase diagram of the Hubbard chain with electron-hole symmetric correlated hopping at 1/2- and 1/4-filling using geometric concepts and continuum limit fie…
Electron Spin Resonance of defects in the Haldane System Y(2)BaNiO(5)
C. D. Batista, K. Hallberg, A. A. Aligia
We calculate the electron paramagnetic resonance (EPR) spectra of the antiferromagnetic spin-1 chain compound Y(2)BaNi(1-x)Mg(x)O(5) for different values of x and temperature T muc…