299 citations · 2.2k across the 40 of their papers we have counts for
40 papers
Ground-state phase diagram of a spin-1/2 frustrated XXZ ladder
Takuhiro Ogino, Ryui Kaneko, Satoshi Morita +1
We study the ground-state phase diagram of a spin- frustrated XXZ ladder, in which two antiferromagnetic chains are coupled by competing rung and diagonal interactions…
Vortex lattices in binary Bose-Einstein condensates: Collective modes, quantum fluctuations, and intercomponent entanglement
Takumi Yoshino, Shunsuke Furukawa, Masahito Ueda
We study binary Bose-Einstein condensates subject to synthetic magnetic fields in mutually parallel or antiparallel directions. Within the mean-field theory, the two types of field…
Symmetry-protected topological phases and competing orders in a spin-1/2 XXZ ladder with a four-spin interaction
Takuhiro Ogino, Shunsuke Furukawa, Ryui Kaneko +2
We study a spin-1/2 XXZ model with a four-spin interaction on a two-leg ladder. By means of effective field theory and matrix product state calculations, we obtain rich ground-stat…
Continuous phase transition between Neel and valence bond solid phases in a J-Q-like spin ladder system
Takuhiro Ogino, Ryui Kaneko, Satoshi Morita +2
We investigate a quantum phase transition between a Neel phase and a valence bond solid (VBS) phase, in each of which a different Z2 symmetry is broken, in a spin-1/2 two-leg XXZ l…
Magnetoelastic study on the frustrated quasi-one-dimensional spin-1/2 magnet LiCuVO
A. Miyata, T. Hikihara, S. Furukawa +3
We investigated the magnetoelastic properties of the quasi-one-dimensional spin-1/2 frustrated magnet LiCuVO. Longitudinal-magnetostriction experiments were performed at 1.5 K…
Intercomponent entanglement entropy and spectrum in binary Bose-Einstein condensates
Takumi Yoshino, Shunsuke Furukawa, Masahito Ueda
We study the entanglement entropy and spectrum between components in binary Bose-Einstein condensates in spatial dimensions. We employ effective field theory to show that the e…