429 citations · 3.2k across the 101 of their papers we have counts for
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Simplified approach to the magnetic blue shift of Mott gaps
Mohsen Hafez-Torbati, Frithjof B. Anders, Götz S. Uhrig
The antiferromagnetic ordering in Mott insulators upon lowering the temperature is accompanied by a transfer of the single-particle spectral weight to lower energies and a shift of…
Microscopic origin of the effective spin-spin interaction in a semiconductor quantum dot ensemble
Frederik Vonhoff, Andreas Fischer, Kira Deltenre +1
We present a microscopic model for a singly charged quantum dot (QD) ensemble to reveal the origin of the long-range effective interaction between the electron spins in the QDs. Wi…
Open Wilson chain numerical renormalization group approach to Green's functions
Jan Böker, Frithjof B. Anders
By combining Wilson's numerical renormalization group with a modified Bloch-Redfield approach we are able to eliminate the artificial broadening of the Lehmann representation of qu…
Nuclear spin polaron-formation: anisotropy effects and quantum phase transition
Iris Kleinjohann, Andreas Fischer, Mikhail M. Glazov +1
We study theoretically the formation of the nuclear-spin polaron state in semiconductor nanosystems within the Lindblad equation approach. To this end, we derive a general Lindblad…