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
Sharp entanglement thresholds in the logarithmic negativity of disjoint blocks in the transverse-field Ising chain
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aad9ba
Abstract: Entanglement has developed into an essential concept for the characterization of phases and phase transitions in ground states of quantum many-body systems. In this work, we use the logarithmic negativity to study the spatial entanglement… read more here.
Keywords: disjoint blocks; ising chain; logarithmic negativity; field ising ... See more keywords
Fidelity and criticality of a quantum Ising chain with long-range interactions
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DOI: 10.1103/physreva.98.023607
Abstract: We study the criticality of long-range quantum ferromagnetic Ising chain with algebraically decaying interactions $1/r^{\alpha}$ via the fidelity susceptibility based on the exact diagonalization and the density matrix renormalization group techniques. We find that critical… read more here.
Keywords: quantum; range; ising chain; long range ... See more keywords
Observation of E8 particles in an Ising chain antiferromagnet
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DOI: 10.1103/physrevb.101.220411
Abstract: Near the transverse-field-induced quantum critical point of the Ising chain, an exotic dynamic spectrum consisting of exactly eight particles was predicted, which is uniquely described by an emergent quantum integrable field theory with the symmetry… read more here.
Keywords: ising chain; chain; mathrm; chain antiferromagnet ... See more keywords
Residual entropy of the dilute Ising chain in a magnetic field.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.054111
Abstract: The properties of the ground state of the simplest frustrated system, the dilute Ising chain in a magnetic field, are rigorously investigated over the entire range of concentrations of charged nonmagnetic impurities. Analytical methods are… read more here.
Keywords: dilute ising; ising chain; field; residual entropy ... See more keywords