51 citations · 426 across the 31 of their papers we have counts for
32 papers
Reference-Measure Freedom of the Effective Hamiltonian: From Stochastic Thermodynamics to the Macroscopic Limit
Ryuichi Okamoto
The effective Hamiltonian (EH), also referred to as the potential of mean force or free-energy landscape, is widely used to describe equilibrium properties and slow dynamics in che…
Theory of electrolytes including steric, attractive, and hydration interactions
Ryuichi Okamoto, Kenichiro Koga, Akira Onuki
We present a continuum theory of electrolytes composed of a waterlike solvent and univalent ions. First, we start with a density functional for the coarse-grained solvent,…
Theory of nonionic hydrophobic solutes in mixture solvent: Solvent-mediated interaction and solute-induced phase separation
Ryuichi Okamoto, Akira Onuki
We present a theory of nonionic solutes in a mixture solvent composed of water-like and alcohol-like species. First, we show relationship among the solvation chemical potential, th…
A three-sphere microswimmer in a structured fluid
Kento Yasuda, Ryuichi Okamoto, Shigeyuki Komura
We discuss the locomotion of a three-sphere microswimmer in a viscoelastic structured fluid characterized by typical length and time scales. We derive a general expression to link…
Dynamics of a bilayer membrane with membrane-solvent partial slip boundary conditions
Kento Yasuda, Ryuichi Okamoto, Shigeyuki Komura +1
We discuss the dynamics of a bilayer membrane with partial slip boundary conditions between the monolayers and the bulk fluid. Using Onsager's variational principle to account for…
Thermal and active fluctuations of a compressible bilayer vesicle
T. V. Sachin Krishnan, Kento Yasuda, Ryuichi Okamoto +1
We discuss thermal and active fluctuations of a compressible bilayer vesicle by using the results of hydrodynamic theory for vesicles. Coupled Langevin equations for the membrane d…