Exploring entropic uncertainty relation in the Heisenberg XX model with inhomogeneous magnetic field
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1657-0
Abstract: In this work, we investigate the quantum-memory-assisted entropic uncertainty relation in a two-qubit Heisenberg XX model with inhomogeneous magnetic field. It has been found that larger coupling strength J between the two spin-chain qubits can… read more here.
Keywords: entropic uncertainty; uncertainty; heisenberg model; magnetic field ... See more keywords
Surface anisotropy of iron oxide nanoparticles and slabs from first principles: Influence of coatings and ligands as a test of the Heisenberg model
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2017.03.034
Abstract: Abstract We performed ab initio computations of the magnetic properties of simple iron oxide clusters and slabs. We considered an iron oxide cluster functionalized by a molecule or glued to a gold cluster of the… read more here.
Keywords: iron; surface anisotropy; heisenberg model; iron oxide ... See more keywords
Ordered states in the Kitaev-Heisenberg model: From 1D chains to 2D honeycomb
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-19960-4
Abstract: We study the ground state of the 1D Kitaev-Heisenberg (KH) model using the density-matrix renormalization group and Lanczos exact diagonalization methods. We obtain a rich ground-state phase diagram as a function of the ratio between… read more here.
Keywords: kitaev heisenberg; states kitaev; heisenberg model; model ... See more keywords
From the open generalized Heisenberg model to the Landau–Lifshitz equation
Sign Up to like & getrecommendations! Published in 2020 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abbbd3
Abstract: Magnetic systems can be described by the classical Landau-Lifshitz (LL) equation or the fully quantum open Heisenberg model. Using the Lindblad master equation and the mean-field approximation, we demonstrate that the open Heisenberg model is… read more here.
Keywords: landau lifshitz; lifshitz equation; heisenberg model; model ... See more keywords
A TBA approach to thermal transport in the XXZ Heisenberg model
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/aa8c13
Abstract: It is shown that the Bethe ansatz formulation of the easy-plane 1D Heisenberg model thermodynamics (TBA) by Takahashi and Suzuki and the subsequent analysis of the spin Drude weight, also reproduces the thermal Drude weight… read more here.
Keywords: approach thermal; tba approach; heisenberg model; heisenberg ... See more keywords
Cluster functional renormalization group and absence of a bilinear spin liquid in the J1−J2 Heisenberg model
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.125130
Abstract: The pseudofermion functional renormalization group (pf-FRG) has been put forward as a semi-analytical scheme that, for a given microscopic spin model, allows to discriminate whether the low-temperature states exhibit magnetic ordering or a tendency towards… read more here.
Keywords: spin; bilinear spin; spin liquid; heisenberg model ... See more keywords
Nonlocal exchange interactions in strongly correlated electron systems
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.235165
Abstract: We study the influence of ferromagnetic nonlocal exchange on correlated electrons in terms of a $SU(2)$-Hubbard-Heisenberg model and address the interplay of on-site interaction induced local moment formation and the competition of ferromagnetic direct and… read more here.
Keywords: exchange; exchange interactions; hubbard heisenberg; field ... See more keywords
Spin-1 Kitaev-Heisenberg model on a honeycomb lattice
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.121102
Abstract: We study the Kitaev-Heisenberg model with spin-1 local degree of freedom on a two-dimensional honeycomb lattice numerically by density matrix renormalization group method. By tuning the relative value of the Kitaev and Heisenberg exchange couplings,… read more here.
Keywords: heisenberg model; spin; honeycomb lattice; kitaev heisenberg ... See more keywords
Transverse instability and universal decay of spin spiral order in the Heisenberg model
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.l060302
Abstract: We analyze the stability of spin spiral states in the two-dimensional Heisenberg model. Our analysis reveals that the SU(2) symmetric point hosts a dynamic instability that is enabled by the existence of energetically favorable transverse… read more here.
Keywords: transverse instability; spin spiral; spiral order; instability universal ... See more keywords
Gapped spin liquid with Z 2 topological order for the kagome Heisenberg model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.235107
Abstract: We apply symmetric tensor network state (TNS) to study the nearest neighbor spin-1/2 antiferromagnetic Heisenberg model on Kagome lattice. Our method keeps track of the global and gauge symmetries in TNS update procedure and in… read more here.
Keywords: topological order; heisenberg model; gapped spin;
Topological superconductivity in the extended Kitaev-Heisenberg model
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.014504
Abstract: We study superconducting pairing in the doped Kitaev-Heisenberg model by taking into account the recently proposed symmetric off-diagonal exchange Γ. By performing a mean-field analysis, we classif ... read more here.
Keywords: kitaev heisenberg; heisenberg model; topological superconductivity;