25 citations · 25 across the 1 of their papers we have counts for
6 papers
Edge states of Spin-1/2 Two-Leg Ladder with Four-Spin Ring Exchange
Mitsuhiro Arikawa, Shou Tanaya, Isao Maruyama +1
A topological insulator and its spin analogue as a gapped spin liquid have characteristic low energy excitations (edge states) within the gap when the systems have boundaries. This…
Dynamics in two-leg spin ladder with a four-spin cyclic interaction
S. Nishimoto, M. Arikawa
We study two-leg Heisenberg ladder with four-spin cyclic interaction using the (dynamical) density-matrix renormalization group method. We demonstrate the dependence of the low-lyi…
Basic properties of three-leg Heisenberg tube
S. Nishimoto, M. Arikawa
We study three-leg antiferromagnetic Heisenberg model with the periodic boundary conditions in the rung direction. Since the rungs form regular triangles, spin frustration is induc…
Low-lying excitations of the three-leg spin tube using the density-matrix renormalization group method
S. Nishimoto, M. Arikawa
Using the (dynamical) density-matrix renormalization group method, we study the low-energy physics of three-leg antiferromagnetic Heisenberg model where the periodic boundary condi…
Edge states for the n=0 Laudau level in graphene
Mitsuhiro Arikawa, Yasuhiro Hatsugai, Hideo Aoki
In the anomalous quantum Hall effect (QHE), a hallmark of graphene, nature of the edge states in magnetic fields poses an important question, since the edge and bulk should be inti…
Edge states in graphene in magnetic fields -- a speciality of the edge mode embedded in the n=0 Landau band
Mitsuhiro Arikawa, Yasuhiro Hatsugai, Hideo Aoki
While usual edge states in the quantum Hall effect(QHE) reside between adjacent Landau levels, QHE in graphene has a peculiar edge mode at E=0 that reside right within the n=0 Land…