73 citations · 192 across the 25 of their papers we have counts for
25 papers
Theoretical Basis for Classifying Hyperuniform States of Two-Component Systems
Hiroshi Frusawa
Hyperuniform states of matter exhibit unusual suppression of density fluctuations at large scales, contrasting sharply with typical disordered configurations. Various types of hype…
Stochastic Density Functional Theory on Lane Formation in Electric-Field-Driven Ionic Mixtures: Flow-Kernel-Based Formulation
Hiroshi Frusawa
Simulation and experimental studies have demonstrated non-equilibrium ordering in driven colloidal suspensions: with increasing driving force, a uniform colloidal mixture transform…
Pole Analysis of the Inter-Replica Correlation Function in a Two-Replica System as a Binary Mixture: Mean Overlap in the Cluster Glass Phase
Hiroshi Frusawa
To investigate the cluster glass phase of ultrasoft particles, we examine an annealed two-replica system endowed with an attractive inter-replica field similar to that of a binary…
Replica Field Theory for a Generalized Franz--Parisi Potential of Inhomogeneous Glassy Systems: New Closure and the Associated Self-Consistent Equation
Hiroshi Frusawa
On approaching the dynamical transition temperature, supercooled liquids show heterogeneity over space and time. Static replica theory investigates the dynamical crossover in terms…
Electric-field-induced oscillations in ionic fluids: a unified formulation of modified Poisson-Nernst-Planck models and its relevance to correlation function analysis
Hiroshi Frusawa
We theoretically investigate an electric-field-driven system of charged spheres as a primitive model of concentrated electrolytes under an applied electric field. First, we provide…
Non-hyperuniform metastable states around a disordered hyperuniform state of densely packed spheres: stochastic density functional theory at strong coupling
Hiroshi Frusawa
Disordered and hyperuniform structures of densely packed spheres near and at jamming are characterized by vanishing of long-wavelength density fluctuations, or equivalently by long…
On the equivalence of self-consistent equations for nonuniform liquids: a unified description of the various modifications
Hiroshi Frusawa
A variety of self-consistent (SC) equations have been proposed for non-uniform states of liquid particles under external fields, including adsorbed states at solid substrates and c…
Free-energy functional of instantaneous correlation field in liquids: field-theoretic derivation of the closures
Hiroshi Frusawa
This paper presents a unified method for formulating a field-theoretic perturbation theory that encompasses the conventional liquid state theory. First, the free-energy functional…
Ground-state correlation energy of counterions at a charged planar wall: Gibbs-Bogoliubov lower-bound approach
Hiroshi Frusawa
Recent simulation results imply the lowering of the ground-state correlation energy per counterion at a charged planar wall, compared with that of the 2D and 3D one-component plasm…
Coarse-Grained Counterions in the Strong Coupling Limit
Hiroshi Frusawa
Recent Monte Carlo simulations (A. G. Moreira and R. R. Netz: Eur. Phys. J. E {\bf 8} (2002) 33) in the strong Coulomb coupling regime suggest strange counterion electrostatics unl…
Transverse density fluctuations around the ground state distribution of counterions near one charged plate: stochastic density functional view
Hiroshi Frusawa
We consider the Dean-Kawasaki (DK) equation of overdamped Brownian particles that forms the basis of the stochastic density functional theory. Recently, the linearized DK equation…
Functional-integral approach to Coulomb fluids in the strong coupling limit
Hiroshi Frusawa
We have developed a field theory for strongly coupled Coulomb fluids, via introducing new functional--integral transformation of the electrostatic interaction energy. Our formalism…
Electrostatic contribution to colloidal solvation in terms of the self-energy modified Boltzmann distribution
Hiroshi Frusawa
Electrostatic interactions make a large contribution to solvation free energy in ionic fluids such as electrolytes and colloidal dispersions. The electrostatic contribution to solv…
Stochastic dynamics and thermodynamics around a metastable state based on the linear Dean-Kawasaki equation
Hiroshi Frusawa
The Dean-Kawasaki equation forms the basis of the stochastic density functional theory (DFT). Here it is demonstrated that the Dean-Kawasaki equation can be directly linearized in…
Bridging the gap between correlation entropy functionals in the mean spherical and the hypernetted chain approximations: a field theoretic description
Hiroshi Frusawa
The correlation entropy as a functional of radial distribution function (or the total correlation function ) in classical fluids has been obtained from the seco…
A variational principle behind van der Waals picture of strongly coupled plasmas
Hiroshi Frusawa
Various strong coupling theories of the one-component plasma have successfully predicted the thermodynamic and structural properties by separating the Coulomb potential into short-…
A self-consistent field theory of density correlations in classical fluids
Hiroshi Frusawa
More than half of a century has passed since the free energy of classical fluids defined by second Legendre transform was derived as a functional of density-density correlation fun…
A Non-stoichiometric Universality in Microbubble-Polyelectrolyte Complexation
Hiroshi Frusawa, Ryohei Yoshida
We investigated the fundamental electrical properties of microbubbles (MBs) that are directly encapsulated by the addition of oppositely charged polyelectrolytes (PEs). Charge-reve…
Microscopic Characterization of Individual Submicron Bubbles during the Layer-by-Layer Deposition: Towards Creating Smart Agents
Riku Kato, Hiroshi Frusawa
We investigated the individual properties of various polyion-coated bubbles with a mean diameter ranging from 300 to 500 nm. Dark field microscopy allows one to track the individua…
Anisotropic micro-cloths fabricated from DNA-stabilized carbon nanotubes: one-stop manufacturing with electrode needles
Hiroshi Frusawa, Gen Yoshii
Among a variety of solution-based approaches to fabricate anisotropic films of aligned carbon nanotubes (CNTs), we focus on the dielectrophoretic assembly method using AC electric…
Emerging quasi-0D states at vanishing total entropy of the 1D hard sphere system: a coarse-grained similarity to the car parking problem
Hiroshi Frusawa
A coarse-grained system of one-dimensional (1D) hard spheres (HSs) is created using the Delaunay tessellation, which enables one to define the quasi-0D state. It is found from comp…
Tuning the size and configuration of nanocarbon microcapsules: aqueous method using optical tweezers
Hiroshi Frusawa, Youei Matsumoto
To date, optical manipulation techniques for aqueous dispersions have been developed that deposit and/or transport nanoparticles not only for fundamental studies of colloidal dynam…
Electric moulding of dispersed lipid nanotubes into a nanofluidic device
Hiroshi Frusawa, Tatsuhiko Manabe, Eri Kagiyama +4
Hydrophilic nanotubes formed by lipid molecules have potential applications as platforms for chemical or biological events occurring in an attolitre volume inside a hollow cylinder…
Elastic precursor of the transformation from glycolipid-nanotube to -vesicle
T. Fujima, H. Frusawa, H. Minamikawa +2
By the combination of optical tweezer manipulation and digital video microscopy, the flexural rigidity of single glycolipid "nano" tubes has been measured below the transition temp…