272 citations · 555 across the 8 of their papers we have counts for
8 papers
Conformation dynamics in asymmetric chain-like three-body bead-spring models
Yuki Sogo, Yoshiyuki Y. Yamaguchi
We consider conformation dynamics of a chain-like three-body bead-spring model, in which three point masses are connected in series by two springs and the conformation is defined b…
Inferring coupling strength and natural frequency distribution in coupled Stuart-Landau oscillators using linear response
Moonseok Choi, Yoshiyuki Y. Yamaguchi
We propose a framework to infer the coupling strength and the natural frequency distribution in a coupled Stuart-Landau oscillator system with a large population. The inference met…
Critical Scaling of Finite-Size Fluctuations around Marginal Stability in Long-Range Hamiltonian Systems
Yoshiyuki Y. Yamaguchi, Julien Barré
Finite size fluctuations are a crucial ingredient in kinetic theory of long-range interacting collisionless systems. In this Letter, we introduce a phenomenological theory which pr…
Universality of discontinuous bifurcations in collisionless dynamics
Yoshiyuki Y. Yamaguchi, Julien Barré
We investigate the universality in collisionless nonlinear dynamics of a codimension-two bifurcation where two eigenvalues collide at the origin, and two lines of continuous bifurc…
Stabilization of a transition state by excited vibration and impact on the reaction rate in the three-body Lennard-Jones system
Yoshiyuki Y. Yamaguchi
The three-body Lennard-Jones system on the plane has a transition state, which is the straight conformation located at a saddle point of the potential energy landscape. We show tha…
Towards a classification of bifurcations in Vlasov equations
Julien Barré, David Métivier, Yoshiyuki Y. Yamaguchi
We propose a classification of bifurcations of Vlasov equations, based on the strength of the resonance between the unstable mode and the continuous spectrum on the imaginary axis.…
Trapping scaling for bifurcations in Vlasov systems
J. Barré, D. Métivier, Y. Y. Yamaguchi
We study non oscillating bifurcations of non homogeneous steady states of the Vlasov equation, a situation occurring in galactic models, or for Bernstein-Greene-Kruskal modes in pl…
Stability criteria of the Vlasov equation and quasi-stationary states of the HMF model
Y. Y. Yamaguchi, J. Barr'e, F. Bouchet +2
We perform a detailed study of the relaxation towards equilibrium in the Hamiltonian Mean-Field (HMF) model, a prototype for long-range interactions in -particle dynamics. In pa…