29 citations · 59 across the 3 of their papers we have counts for
5 papers
Renormalization of impurity scattering in one-dimensional interacting electron systems in magnetic field
T. Hikihara, A. Furusaki, K. A. Matveev
We study the renormalization of a single impurity potential in one-dimensional interacting electron systems in the presence of magnetic field. Using the bosonization technique and…
Exact duality relations in correlated electron systems
Tsutomu Momoi, Toshiya Hikihara
Using gauge transformations on electron bond operators, we derive exact duality relations between various order parameters for correlated electron systems. Applying these transform…
Boundary contributions to specific heat and susceptibility in the spin-1/2 XXZ chain
A. Furusaki, T. Hikihara
Exact low-temperature asymptotic behavior of boundary contribution to specific heat and susceptibility in the one-dimensional spin-1/2 XXZ model with exchange anisotropy 1/2 < Δ\le…
Ground State Properties of an S=1/2 Distorted Diamond Chain
Takashi Tonegawa, Kiyomi Okamoto, Toshiya Hikihara +2
We investigate the ground state properties of an S=1/2 distorted diamond chain described by the Hamiltonian ${\cal H}=J_1\sum_\ell\bigl\{\bigl(\vecS_{3\ell-1}\cdot\vecS_{3\ell} +\v…
One-dimensional Heisenberg antiferromagnet in which two S=1/2 and two S=1 spins are arranged alternatively
T. Tonegawa, T. Hikihara, T. Nishino +3
Ground-state and thermodynamic properties of the one-dimensional Heisenberg antiferromagnet in which two S=1/2 and two S=1 spins are arranged alternatively are studied by a quantum…