108 citations · 270 across the 6 of their papers we have counts for
10 papers · 1 filter
Universal temperature dependence of the magnetization of gapped spin chains
Yoshitaka Maeda, Chisa Hotta, Masaki Oshikawa
Temperature dependence of the magnetization of the Haldane spin chain at finite magnetic field is analyzed systematically. Quantum Monte Carlo data indicates a clear minimum of mag…
Reduced Density Matrices and Topological Order in a Quantum Dimer Model
Shunsuke Furukawa, Gregoire Misguich, Masaki Oshikawa
Resonating valence bond (RVB) liquids in two dimensions are believed to exhibit topological order and to admit no local order parameter of any kind. This is a defining property of…
Systematic Derivation of Order Parameters through Reduced Density Matrices
Shunsuke Furukawa, Gregoire Misguich, Masaki Oshikawa
A systematic method for determining order parameters for quantum many-body systems on lattices is developed by utilizing reduced density matrices. This method allows one to extract…
Saturated Ferromagnetism from Statistical Transmutation in Two Dimensions
Yasuhiro Saiga, Masaki Oshikawa
The total spin of the ground state is calculated in the U -> infinity Hubbard model with uniform magnetic flux perpendicular to a square lattice, in the absence of Zeeman coupling.…
Fractionalization, topological order, and quasiparticle statistics
Masaki Oshikawa, T. Senthil
We argue, based on general principles, that topological order is essential to realize fractionalization in gapped insulating phases in dimensions . In with genus $g…
Bose-Einstein Condensation of Magnons in TlCuCl3: Phase diagram and specific heat from a self-consistent Hartee-Fock calculation with a realistic dispersion relation
Gregoire Misguich, Masaki Oshikawa
We extend the self-consistent Hartree-Fock-Popov calculations by Nikuni et al. [Phys. Rev. Lett. 84, 5868 (2000)] concerning the Bose-Eistein condensation of magnons in TlCuCl3 to…