Thermodynamics of the Spin-1/2 Heisenberg–Ising Chain at High Temperatures: a Rigorous Approach
Sign Up to like & getrecommendations! Published in 2018 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-020-03749-6
Abstract: This work develops a rigorous setting allowing one to prove several features related to the behaviour of the Heisenberg–Ising (or XXZ) spin-1/2 chain at finite temperature T . Within the quantum inverse scattering method the… read more here.
Keywords: thermodynamics; heisenberg ising; spin heisenberg; ising chain ... See more keywords
Continuous field-driven phase transition from the Ising universality class of a frustrated spin-1/2 Heisenberg FM/AF square bilayer
Sign Up to like & getrecommendations! Published in 2018 at "Solid State Communications"
DOI: 10.1016/j.ssc.2018.06.014
Abstract: Abstract Low-temperature magnetothermodynamics of a highly frustrated spin-1/2 Heisenberg square bilayer with the antiferromagnetic intra-dimer interaction and ferromagnetic inter-dimer interaction is governed by localized many-magnon eigenstates, which can be described by the effective ferromagnetic spin-1/2… read more here.
Keywords: heisenberg square; spin heisenberg; frustrated spin; square bilayer ... See more keywords
Numerical investigations of SO(4) emergent extended symmetry in spin- 1 2 Heisenberg antiferromagnetic chains
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.014414
Abstract: We would like to thank C. Xu for useful discussions. A.W.S. was supported by the NSF under Grant No. DMR-1710170 and by a Simons Investigator Grant. P.P. would like to thank the Institute of Physics,… read more here.
Keywords: numerical investigations; spin heisenberg; investigations emergent; symmetry spin ... See more keywords
Towards lattice-gas description of low-temperature properties above the Haldane and cluster-based Haldane ground states of a mixed spin-(1,1/2) Heisenberg octahedral chain.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.014107
Abstract: The rich ground-state phase diagram of the mixed spin-(1,1/2) Heisenberg octahedral chain was previously elaborated from effective mixed-spin Heisenberg chains, which were derived by employing a local conservation of a total spin on square plaquettes… read more here.
Keywords: mixed spin; octahedral chain; spin heisenberg; ground ... See more keywords
Thermal Ising Transition in the Spin-1/2 J_{1}-J_{2} Heisenberg Model.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.227202
Abstract: Using an SU(2) invariant finite-temperature tensor network algorithm, we provide strong numerical evidence in favor of an Ising transition in the collinear phase of the spin-1/2 J_{1}-J_{2} Heisenberg model on the square lattice. In units… read more here.
Keywords: ising transition; heisenberg model; spin heisenberg; temperature ... See more keywords
Distribution of Bipartite and Tripartite Entanglement within a Spin-1/2 Heisenberg Star in a Magnetic Field
Sign Up to like & getrecommendations! Published in 2023 at "Molecules"
DOI: 10.3390/molecules28104037
Abstract: The spatial distribution of entanglement within a spin-1/2 Heisenberg star composed from a single central spin and three peripheral spins is examined in the presence of an external magnetic field using the Kambe projection method,… read more here.
Keywords: heisenberg star; spin heisenberg; bipartite tripartite; tripartite entanglement ... See more keywords