12 papers · 1 filter
Emergent Pair Density Wave Order Across a Lifshitz Transition
Luhang Yang, Elbio Dagotto, Adrian E. Feiguin
We numerically investigate the telltale signs of pair-density-wave order (PDW) in the Kondo-Heisenberg chain by focusing on the momentum resolved spectrum in different parameter re…
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…
Spin-charge separation in two-leg t-J ladders
Luhang Yang, Elbio Dagotto
Spin-charge separation is a hallmark of one-dimensional fermionic systems, yet its realization in higher dimensions remains an open question. To address this issue, we investigate…
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,…
Effects of the Next-Nearest-Neighbor Hopping on the Low-Dimensional Hubbard Model: Ferromagnetism, Antiferromagnetism, and Superconductivity
Luhang Yang, Adrian E. Feiguin, Thomas P. Devereaux +1
The Hubbard model has attracted considerable interest due to its prototypical role in describing strongly interacting electronic systems, such as high-critical-temperature supercon…