Thermal Coherence in Heisenberg Spin Chains
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-020-04495-0
Abstract: We study the effect of magnetic field and temperature on the amount of coherence of two arbitrary spins in the Heisenberg chain. While increasing temperature always leads to lowering the value of this coherence, in… read more here.
Keywords: coherence; coherence heisenberg; thermal coherence; heisenberg ... See more keywords
The k-plane transform on the Heisenberg group
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Pseudo-Differential Operators and Applications"
DOI: 10.1007/s11868-019-00314-1
Abstract: The paper deals with the k-plane transform $${\mathcal {R}}_{k}$$ on the Heisenberg group. We study the properties of the transform $${\mathcal {R}}_{k}$$ and obtain three types of inversion formulas for $${\mathcal {R}}_{k}$$. The first inversion… read more here.
Keywords: transform heisenberg; group; heisenberg group; heisenberg ... See more keywords
Influence of a spatial anisotropy on presence of the intermediate one-half magnetization plateau of a spin-1/2 Ising–Heisenberg branched chain
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2021.168547
Abstract: A spin-1/2 Ising-Heisenberg branched chain constituted by regularly alternating Ising spins and Heisenberg dimers involving an additional side branching is exactly solved in a magnetic field by the transfer-matrix method. The spin1/2 Ising-Heisenberg branched chain… read more here.
Keywords: phase; heisenberg branched; heisenberg; branched chain ... See more keywords
Quantum generalized Heisenberg algebras and their representations
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DOI: 10.1080/00927872.2021.1959602
Abstract: We introduce and study a new class of algebras, which we name \textit{quantum generalized Heisenberg algebras} and denote by $\mathcal{H}_q (f,g)$, related to generalized Heisenberg algebras, but allowing more parameters of freedom, so as to… read more here.
Keywords: algebras representations; heisenberg algebras; heisenberg; representations quantum ... See more keywords
Numerical Methods and Closed Orbits in the Kepler–Heisenberg Problem
Sign Up to like & getrecommendations! Published in 2019 at "Experimental Mathematics"
DOI: 10.1080/10586458.2017.1416709
Abstract: ABSTRACT The Kepler–Heisenberg problem is that of determining the motion of a planet around a sun in the sub-Riemannian Heisenberg group. The sub-Riemannian Hamiltonian provides the kinetic energy, and the gravitational potential is given by… read more here.
Keywords: closed orbits; kepler heisenberg; heisenberg; heisenberg problem ... 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
Effect of long-range interactions on multipartite entanglement in Heisenberg chains
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.062318
Abstract: It is well known that the notions of spatial locality are often lost in quantum systems with long-range interactions, as exhibited by emergence of phases with exotic long-range order and faster propagation of quantum correlations.… read more here.
Keywords: effect long; range; long range; range interactions ... See more keywords
Long-range interaction in an open boundary-driven Heisenberg spin lattice: A far-from-equilibrium transition to ballistic transport
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.125101
Abstract: We study an open Heisenberg XXZ spin chain with long-range Ising-type interaction, which is incoherently driven at its boundaries and therefore a far-from-equilibrium steady state current is induced. Quantum Monte Carlo techniques make a regime… read more here.
Keywords: ballistic transport; far equilibrium; transport; long range ... See more keywords
Long-range anisotropic Heisenberg ferromagnets and electrically tunable ordering
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.214411
Abstract: Recent realizations of intrinsic magnetic order in truly two-dimensional materials have opened new avenues in the fundamental knowledge and spintronic applications. Here we develop an anisotropic Heisenberg model with relativistic exchange interactions that are obtained… read more here.
Keywords: anisotropic heisenberg; long range; range anisotropic; heisenberg ferromagnets ... See more keywords
Quantum paramagnetism and magnetization plateaus in a kagome-honeycomb Heisenberg antiferromagnet
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.094416
Abstract: A spin-1/2 Heisenberg model on honeycomb lattice is investigated by doing triplon analysis and quantum Monte Carlo calculations. This model, inspired by Cu$_2$(pymca)$_3$(ClO$_4$), has three different antiferromagnetic exchange interactions ($J_A$, $J_B$, $J_C$) on three different… read more here.
Keywords: magnetization plateaus; magnetization; honeycomb; quantum paramagnetism ... See more keywords
Weak three-dimensional coupling of Heisenberg quantum spin chains in SrCuTe2O6
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DOI: 10.1103/physrevb.104.144402
Abstract: The magnetic Hamiltonian of the Heisenberg quantum antiferromagnet SrCuTe2O6 is studied by inelastic neutron scattering technique on powder and single crystalline samples above and below the magnetic transition temperatures at 8 K and 2 K.… read more here.
Keywords: spin; heisenberg; quantum spin; spin chains ... See more keywords