13 citations · 20 across the 4 of their papers we have counts for
6 papers
Vortex stripe glass with self-generated randomness
Hajime Yoshino, Tomoaki Nogawa, Bongsoo Kim
We found a finite temperature glass transition in the absence of quenched disorder in frustrated Josephson junction arrays (JJA) on a square lattice with anisotropic Josephson coup…
Abnormal diffusion of a single vortex in the two dimensional XY model
Tomoaki Nogawa, Koji Nemoto
We study thermal diffusion dynamics of a single vortex in two dimensional XY model. By numerical simulations we find an abnormal diffusion such that the mobility decreases with tim…
Vortex jamming in superconductors and granular rheology
Hajime Yoshino, Tomoaki Nogawa, Bongsoo Kim
We demonstrate that a highly frustrated anisotropic Josephson junction array(JJA) on a square lattice exhibits a zero-temperature jamming transition, which shares much in common wi…
Spatio-temporal scaling for out-of-equilibrium relaxation dynamics of an elastic manifold in random media: crossover between the Larkin regime and thermally activated regime
Tomoaki Nogawa, Koji Nemoto, Hajime Yoshino
We study relaxation dynamics of a three dimensional elastic manifold in random potential from a uniform initial condition by numerically solving the Langevin equation.We observe gr…
Nonequilibrium relaxation analysis of a quasi-one-dimensional frustrated XY model for charge-density waves in ring-shaped crystals
Tomoaki Nogawa, Koji Nemoto
We propose a model for charge density waves in ring shaped crystals, which depicts frustration between intra- and inter-chain couplings coming from cylindrical bending. It is then…
Possibility of the Solid-Fluid Transition in Moving Periodic Systems
Tomoaki Nogawa, Hajime Yoshino, Hiroshi Matsukawa
The steady sliding state of periodic structures such as charge density waves and flux line lattices is numerically studied based on two and three dimensional driven random field XY…