172 citations · 1.3k across the 32 of their papers we have counts for
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Global constraints on fluxes in two different anisotropic limits of a hypernonagon Kitaev model
Yasuyuki Kato, Yoshitomo Kamiya, Joji Nasu +1
The Kitaev model is an exactly-soluble quantum spin model, whose ground state provides a canonical example of a quantum spin liquid. Spin excitations from the ground state are frac…
Successive Majorana Topological Transitions Driven by a Magnetic Field in the Kitaev Model
Joji Nasu, Yasuyuki Kato, Yoshitomo Kamiya +1
We study quantum phase transitions in the honeycomb Kitaev model under a magnetic field, focusing on the topological nature of Majorana fermion excitations. We find a gapless phase…
Dynamical structure factor of the triangular antiferromagnet: the Schwinger boson theory beyond the mean field approach
E. A. Ghioldi, M. G. Gonzalez, Shang-Shun Zhang +4
We compute the zero temperature dynamical structure factor of the triangular lattice Heisenberg model (TLHM) using a Schwinger boson approach that includes the Gauss…