252 citations · 2.2k across the 98 of their papers we have counts for
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Generalized Einstein Relation for Brownian Motion in Tilted Periodic Potential
Hidetsugu Sakaguchi
A generalized Einstein relation is studied for Brownian motion in a tilted potential. The exact form of the diffusion constant of the Brownian motion is compared with the generaliz…
Two-dimensional dark soliton in the nonlinear Schroedinger equation
Hidetsugu Sakaguchi, Tomoko Higashiuchi
Two-dimensional gray solitons to the nonlinear Schroedinger equation are numerically created by two processes to show its robustness. One is transverse instability of a one-dimensi…
Gap solitons in quasiperiodic optical lattices
Hidetsugu Sakaguchi, Boris A. Malomed
Families of solitons in one- and two-dimensional (1D and 2D) Gross-Pitaevskii equations with the repulsive nonlinearity and a potential of the quasicrystallic type are constructed…
Efficiency and Fluctuation in Tight-Coupling Model of Molecular Motor
Hidetsugu Sakaguchi
A simple tight-coupling model of a molecular chemical engine is proposed. The efficiency of the chemical engine and its average velocity can be explicitly calculated. The diffusion…
De-excitation gamma-rays from the s-hole state in 15N associated with proton decay in 16O
K. Kobayashi, H. Akimune, H. Ejiri +21
We have measured de-excitation gamma-rays from the s-hole state in 15N produced via the 16O(p,2p)15N reaction in relation to the study of the nucleon decay and the neutrino neutral…
Reaction-Diffusion System in a Vesicle with Semi-Permeable Membrane
Hidetsugu Sakaguchi
We study the Schloegl model in a vesicle with semi-permeable membrane. The diffusion constant takes a smaller value in the membrane region, which prevents the outflow of self-catal…