10 papers
Edge Reconstruction in a Quantum Spin Hall Insulator
Rahul Soni, Matthias Thamm, Gonzalo Alvarez +2
We study interaction-driven edge reconstruction in a quantum spin Hall insulator described by the Bernevig-Hughes-Zhang model with Kanamori-Hubbard interactions using the real-spac…
Intertwined charge, spin, and orbital degrees of freedom under electronic correlations in the one-dimensional Fe chalcogenide chain
Yang Zhang, Pontus Laurell, Gonzalo Alvarez +4
Motivated by recent developments in the study of quasi-one-dimensional iron systems with Fe, we comprehensively study the Fe chalcogenide chain system. Based on first…
Kinetic obstruction to pairing in the doped Kitaev-Heisenberg ladder
Bradraj Pandey, Bo Xiao, Satoshi Okamoto +4
We investigate the hole-doped Kitaev-Heisenberg (--) model on a two-leg ladder geometry using the density-matrix renormalization group (DMRG). We first consider the behavi…
Spinon excitations and spin correlations in the one-dimensional quantum magnet -VOSO probed by Raman spectroscopy
Dirk Wulferding, Diana Lucia Quintero-Castro, Pontus Laurell +3
Fractionalized excitations such as spinons and anyons have emerged as a central theme in condensed matter physics with broad implications for superconductivity, quantum statistics,…
Magnon damping and mode softening in quantum double-exchange ferromagnets
A. Moreo, E. Dagotto, G. Alvarez +3
We present a comprehensive analysis of the magnetic excitations and electronic properties of fully quantum double-exchange ferromagnets, i.e., systems where ferromagnetic ordering…
Diabatic error and propagation of Majorana zero modes in interacting quantum dots systems
Bradraj Pandey, Gaurav Kumar Gupta, Gonzalo Alvarez +2
Motivated by recent experimental progress in realizing Majorana zero modes (MZMs) using quantum dot systems, we investigate the diabatic errors associated with the movement of thos…