7 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.…