94 citations · 659 across the 25 of their papers we have counts for
25 papers
Large- SU(4) Schwinger boson theory for coupled-dimer antiferromagnets
Shang-Shun Zhang, Yasuyuki Kato, E. A. Ghioldi +3
We develop a systematic large- expansion based on the Schwinger boson representation of SU(4) coherent states of dimers for the paradigmatic spin- bilayer square lattice He…
Thermal decay of two-spinon bound states in quasi-2D triangular antiferromagnets
I. L. Pomponio, E. A. Ghioldi, C. J. Gazza +2
We analyze the temperature evolution of the anomalous magnetic spectrum of the spin-1/2 triangular quantum Heisenberg antiferromagnet, which is proximate to a quantum phase transit…
Anomalous continuum scattering and higher-order van Hove singularity in the strongly anisotropic S = 1/2 triangular lattice antiferromagnet
Pyeongjae Park, E. A. Ghioldi, Andrew F. May +10
The S = 1/2 triangular lattice antiferromagnet (TLAF) is a paradigmatic example of frustrated quantum magnetism. An ongoing challenge involves understanding the influence of exchan…
Evidence of Two-Spinon Bound States in the Magnetic Spectrum of BaCoSbO
E. A. Ghioldi, Shang-Shun Zhang, Yoshitomo Kamiya +3
Recent inelastic neutron scattering (INS) experiments of the triangular antiferromagnet BaCoSbO revealed strong deviations from semiclassical theories. We demonstrate t…
Witnessing quantum criticality and entanglement in the triangular antiferromagnet KYbSe
A. O. Scheie, E. A. Ghioldi, J. Xing +20
The Heisenberg triangular lattice quantum spin liquid and the phase transitions to nearby magnetic orders have received much theoretical attention, but clear experimental manifesta…
Schwinger boson theory of ordered magnets
Shang-Shun Zhang, E. A. Ghioldi, L. O. Manuel +2
The Schwinger boson theory provides a natural path for treating quantum spin systems with large quantum fluctuations. In contrast to semi-classical treatments, this theory allows u…