878 citations · 4k across the 83 of their papers we have counts for
83 papers
Schwinger boson theory for Kitaev quantum spin liquids
Daiki Sasamoto, Joji Nasu
The Kitaev model is an exactly solvable model with a quantum spin liquid ground state. While this model was originally proposed as an spin model on a honeycomb lattice, ext…
Thermal Hall transport in Kitaev spin liquids
Tsuyoshi Okubo, Joji Nasu, Takahiro Misawa +1
We investigate the thermal Hall conductivity in the Kitaev model with additional interactions under a magnetic field, employing a finite-temperature tensor network method benchmark…
Spin Seebeck Effect as a Probe for Majorana Fermions in Kitaev Spin Liquids
Yasuyuki Kato, Joji Nasu, Masahiro Sato +3
Quantum entanglement in strongly correlated electron systems often leads to exotic elementary excitations. Quantum spin liquids (QSLs) provide a paradigmatic example, where the ele…
Effects of magnetic fields and orbital angular momentum on excitonic condensation in two-orbital Hubbard model
Ryota Koga, Joji Nasu
We investigate the magnetic-field effects on a two-orbital Hubbard model that describes multiple spin states. Cobalt oxides have been investigated as materials possessing spin-stat…
Flavor-wave theory with quasiparticle damping at finite temperatures: Application to chiral edge modes in the Kitaev model
Shinnosuke Koyama, Joji Nasu
We propose a theoretical framework to investigate elementary excitations at finite temperatures within a localized electron model that describes the interactions between multiple d…
Majorana-fermion origin of the planar thermal Hall effect in the Kitaev magnet -RuCl
K. Imamura, S. Suetsugu, Y. Mizukami +11
The field-induced quantum disordered state of layered honeycomb magnet -RuCl is a prime candidate for Kitaev spin liquids hosting Majorana fermions and non-Abelian anyons. R…