Shunsuke Yabunaka

activity

20112026

most citedSelf-propelled motion of a fluid droplet under chemical reaction

67 citations · 384 across the 28 of their papers we have counts for

collaborators

28 papers

hep-ph2026

Global Fixed Point Potentials in the Abelian Higgs Model with $N$ flavors

Gergely Fejős, Shunsuke Yabunaka

Existence of charged fixed points in the Abelian Higgs model with $N$ flavors in $d$ dimensions is studied using the functional renormalization group. We numerically solve the coup…

cond-mat.stat-mech2026

Mass generation at a fixed point: A Functional Renormalization Group Study of the tricritical O( $N$ ) model in $d = 3$ and $N = \infty$

Shunsuke Yabunaka, Bertrand Delamotte

Renormalization group (RG) fixed points are commonly associated with scale invariance and a divergent correlation length. We show that this connection can fail in the tricritical $…

cond-mat.soft2025★ 1 cited

Drag Coefficient in Near-Critical Binary Mixtures: Solving Hydrodynamic Fields with Improved Numerics

Shunsuke Yabunaka

We calculate the drag coefficient of a spherical particle suspended in a near-critical binary fluid mixture. To capture the scaling behavior associated with critical adsorption in…

cond-mat.stat-mech2024

Global fixed point potential approach to frustrated antiferromagnets

Shunsuke Yabunaka, Bertrand Delamotte

We revisit the critical behavior of classical frustrated systems using the nonperturbative renormalization group (NPRG) equation. Our study is performed within the local potential…

cond-mat.soft2023

Thermoosmosis of a near-critical binary fluid mixture: a general formulation and universal flow direction

Youhei Fujitani, Shunsuke Yabunaka

We consider a binary fluid mixture, which lies in the one-phase region near the demixing critical point, and study its transport through a capillary tube linking two large reservoi…

cond-mat.soft2023

Universal direction in thermoosmosis of a near-critical binary fluid mixture

Shunsuke Yabunaka, Youhei Fujitani

We consider thermoosmosis of a near-critical binary fluid mixture, lying in the one-phase region, through a capillary tube in the presence of preferential adsorption of one compone…

cond-mat.stat-mech2023★ 2 cited

A fixed point can hide another one: the nonperturbative behavior of the tetracritical fixed point of the O( $N$ ) models at large $N$

Shunsuke Yabunaka, Bertrand Delamotte

We show that at $N = \infty$ and below its upper critical dimension, $d < d_{up}$ , the critical and tetracritical behaviors of the O( $N$ ) models are associated with the same renorm…

cond-mat.mes-hall2021★ 6 cited

Real-time observation of charge-spin cooperative dynamics driven by a nonequilibrium phonon environment

Kazuyuki Kuroyama, Sadashige Matsuo, Jo Muramoto +6

Quantum dots are recognized as a suitable platform for studying thermodynamic phenomena involving single electronic charges and spins in nano-scale devices. However, such a thermod…

cond-mat.soft2021★ 8 cited

Isothermal transport of a near-critical binary fluid mixture through a capillary tube with the preferential adsorption

Shunsuke Yabunaka, Youhei Fujitani

We study isothermal transport of a nonelectrolyte binary fluid mixture, which lies in the homogeneous phase near the demixing critical point, through a capillary tube connecting tw…

hep-th2021★ 5 cited

Incompleteness of the large- $N$ analysis of the $O (N)$ models: Nonperturbative cuspy fixed points and their nontrivial homotopy at finite $N$

Shunsuke Yabunaka, Claude Fleming, Bertrand Delamotte

We summarize the usual implementations of the large $N$ limit of $O (N)$ models and show in detail why and how they can miss some physically important fixed points when they become…

hep-th2020★ 22 cited

The finite $N$ origin of the Bardeen-Moshe-Bander phenomenon and its extension at $N = \infty$ by singular fixed points

Claude Fleming, Bertrand Delamotte, Shunsuke Yabunaka

We study the $O (N)$ model in dimension three (3 $d$ ) at large and infinite $N$ and show that the line of fixed points found at $N = \infty$ --the Bardeen-Moshe-Bander (BMB) line-- has…

cond-mat.mes-hall2019★ 9 cited

Full Counting Statistics of Spin-Flip/Conserving Charge Transitions in Pauli-Spin Blockade

Sadashige Matsuo, Kazuyuki Kuroyama, Shunsuke Yabunaka +4

We investigate the full counting statistics (FCS) of spin-conserving and spin-flip charge transitions in Pauli-spin blockade regime of a GaAs double quantum dot. A theoretical mode…

cond-mat.soft2019★ 19 cited

Drag Coefficient of a Rigid Spherical Particle in a Near-Critical Binary Fluid Mixture beyond the Regime of the Gaussian Model

Shunsuke Yabunaka, Youhei Fujitani

The drag coefficient of a rigid spherical particle deviates from the Stokes law when it is put into a near-critical fluid mixture in the homogeneous phase with the critical composi…

cond-mat.stat-mech2018★ 32 cited

Why Might the Standard Large $N$ Analysis Fail in the O( $N$ ) Model: The Role of Cusps in the Fixed Point Potentials

Shunsuke Yabunaka, Bertrand Delamotte

The large $N$ expansion plays a fundamental role in quantum and statistical field theory. We show on the example of the O $(N)$ model that at $N = \infty$ , its traditional implementat…

cond-mat.soft2017★ 12 cited

Critical adsorption profiles around a sphere and a cylinder in a fluid at criticality: Local functional theory

Shunsuke Yabunaka, Akira Onuki

We study universal critical adsorption on a solid sphere and a solid cylinder in a fluid at bulk criticality, where preferential adsorption occurs. We use a local functional theory…

physics.bio-ph2017★ 24 cited

Emergence of epithelial cell density waves

Shunsuke Yabunaka, Philippe Marcq

Epithelial cell monolayers exhibit traveling mechanical waves. We rationalize this observation thanks to a hydrodynamic description of the monolayer as a compressible, active and p…

cond-mat.soft2017★ 14 cited

Electric double layer composed of an antagonistic salt in an aqueous mixture: Local charge separation and surface phase transition

Shunsuke Yabunaka, Akira Onuki

We examine an electric double layer containing an antagonistic salt in an aqueous mixture, where the cations are small and hydrophilic but the anions are large and hydrophobic. In…

q-bio.TO2017★ 16 cited

Cell growth, division and death in cohesive tissues: a thermodynamic approach

Shunsuke Yabunaka, Philippe Marcq

Cell growth, division and death are defining features of biological tissues that contribute to morphogenesis. In hydrodynamic descriptions of cohesive tissues, their occurrence imp…

cond-mat.stat-mech2017★ 50 cited

Surprises in the $O (N)$ models: nonperturbative fixed points, large $N$ limit and multi-criticality

Shunsuke Yabunaka, Bertrand Delamotte

We find that the multicritical fixed point structure of the O( $N$ ) models is much more complicated than widely believed. In particular, we find new nonperturbative fixed points in…

cond-mat.stat-mech2016

The Local Potential Approach to frustrated antiferromagnets

Shunsuke Yabunaka, Bertrand Delamotte

We revisit the critical behavior of classical frustrated systems using the nonperturbative renormalization group (NPRG) equation. Our study is performed within the local potential…

cond-mat.soft2016★ 35 cited

Structure Formation due to Antagonistic Salts

Akira Onuki, Shunsuke Yabunaka, Takeaki Araki +1

Antagonistic salts are composed of hydrophilic and hydrophobic ions. In a mixture solvent (water-oil) such ion pairs are preferentially attracted to water or oil, giving rise to a…

physics.flu-dyn2016★ 19 cited

Collision between chemically-driven self-propelled drops

Shunsuke Yabunaka, Natsuhiko Yoshinaga

We consider analytically and numerically head-on collision between two self-propelled drops. Each drop is driven by chemical reactions that produce or consume the concentration iso…

cond-mat.stat-mech2015★ 24 cited

Functional renormalization group approach to non-collinear magnets

B. Delamotte, M. Dudka, D. Mouhanna +1

A functional renormalization group approach to $d$ -dimensional, $N$ -component, non-collinear magnets is performed using various truncations of the effective action relevant to stud…

cond-mat.soft2014

Geometric pumping induced by shear flow in dilute liquid crystalline polymer solutions

Shunsuke Yabunaka, Hisao Hayakawa

We investigate nonlinear rheology of dilute liquid crystalline polymer solutions under time dependent two-directional shear flow. We analyze the Smoluchowski equation, which descri…

Global Fixed Point Potentials in the Abelian Higgs Model with N flavors

Mass generation at a fixed point: A Functional Renormalization Group Study of the tricritical O(N) model in d=3 and N=∞

Drag Coefficient in Near-Critical Binary Mixtures: Solving Hydrodynamic Fields with Improved Numerics

Global fixed point potential approach to frustrated antiferromagnets

Thermoosmosis of a near-critical binary fluid mixture: a general formulation and universal flow direction

Universal direction in thermoosmosis of a near-critical binary fluid mixture

A fixed point can hide another one: the nonperturbative behavior of the tetracritical fixed point of the O(N) models at large N

Real-time observation of charge-spin cooperative dynamics driven by a nonequilibrium phonon environment

Isothermal transport of a near-critical binary fluid mixture through a capillary tube with the preferential adsorption

Incompleteness of the large-N analysis of the O(N) models: Nonperturbative cuspy fixed points and their nontrivial homotopy at finite N

The finite N origin of the Bardeen-Moshe-Bander phenomenon and its extension at N=∞ by singular fixed points

Full Counting Statistics of Spin-Flip/Conserving Charge Transitions in Pauli-Spin Blockade

Drag Coefficient of a Rigid Spherical Particle in a Near-Critical Binary Fluid Mixture beyond the Regime of the Gaussian Model

Why Might the Standard Large N Analysis Fail in the O(N) Model: The Role of Cusps in the Fixed Point Potentials

Critical adsorption profiles around a sphere and a cylinder in a fluid at criticality: Local functional theory

Emergence of epithelial cell density waves

Electric double layer composed of an antagonistic salt in an aqueous mixture: Local charge separation and surface phase transition

Cell growth, division and death in cohesive tissues: a thermodynamic approach

Surprises in the O(N) models: nonperturbative fixed points, large N limit and multi-criticality

The Local Potential Approach to frustrated antiferromagnets

Structure Formation due to Antagonistic Salts

Collision between chemically-driven self-propelled drops

Functional renormalization group approach to non-collinear magnets

Geometric pumping induced by shear flow in dilute liquid crystalline polymer solutions

Global Fixed Point Potentials in the Abelian Higgs Model with $N$ flavors

Mass generation at a fixed point: A Functional Renormalization Group Study of the tricritical O( $N$ ) model in $d = 3$ and $N = \infty$

A fixed point can hide another one: the nonperturbative behavior of the tetracritical fixed point of the O( $N$ ) models at large $N$

Incompleteness of the large- $N$ analysis of the $O (N)$ models: Nonperturbative cuspy fixed points and their nontrivial homotopy at finite $N$

The finite $N$ origin of the Bardeen-Moshe-Bander phenomenon and its extension at $N = \infty$ by singular fixed points

Why Might the Standard Large $N$ Analysis Fail in the O( $N$ ) Model: The Role of Cusps in the Fixed Point Potentials

Surprises in the $O (N)$ models: nonperturbative fixed points, large $N$ limit and multi-criticality