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cond-mat.str-el2026
Quantum Fisher Information in semiclassical magnon systems
Wolfgang Simeth, Pontus Laurell, Allen Scheie
Quantum Fisher Information (QFI) is a powerful spectroscopic tool to witness many-body quantum entanglement in solid state materials, but it is not always obvious how to relate it…
cond-mat.str-el2026
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…
cond-mat.str-el2026
Nonlinear light cone spreading of correlations in a triangular quantum magnet: a hard quantum simulation target
A. Scheie, J. Willsher, E. A. Ghioldi +6
Dynamical correlations of quantum many-body systems are typically analyzed in the momentum space and frequency basis. However, quantum simulators operate more naturally in real spa…