On the relaxation dynamics of Lohe oscillators on some Riemannian manifolds

SY Ha, D Ko, SW Ryoo - Journal of Statistical Physics, 2018 - Springer
We study the collective relaxation dynamics appearing in weakly coupled Lohe oscillators in
a large coupling regime. The Lohe models on the unit sphere and unitary group were …

High-dimensional Kuramoto models on Stiefel manifolds synchronize complex networks almost globally

J Markdahl, J Thunberg, J Goncalves - Automatica, 2020 - Elsevier
The Kuramoto model of coupled phase oscillators is often used to describe synchronization
phenomena in nature. Some applications, eg, quantum synchronization and rigid-body …

Synchronization and stability for quantum Kuramoto

L DeVille - Journal of Statistical Physics, 2019 - Springer
We present and analyze a nonabelian version of the Kuramoto system, which we call the
Quantum Kuramoto system. We study the stability of several classes of special solutions to …

Complete entrainment of Lohe oscillators under attractive and repulsive couplings

SH Choi, SY Ha - SIAM Journal on Applied Dynamical Systems, 2014 - SIAM
The dynamic behavior of Lohe oscillators on the unit sphere is examined under attractive
and repulsive couplings. We introduce an order parameter measuring the degree of …

Emergent behaviors of Cucker–Smale flocks on Riemannian manifolds

SY Ha, D Kim, FW Schlöder - IEEE Transactions on Automatic …, 2020 - ieeexplore.ieee.org
In this article, we present a new Cucker-Smale model on smooth Riemannian manifolds
using the concepts of covariant derivative and parallel transport, and we also study its …

Systems of matrix Riccati equations, linear fractional transformations, partial integrability and synchronization

MA Lohe - Journal of Mathematical Physics, 2019 - pubs.aip.org
We partially integrate a system of rectangular matrix Riccati equations which describe the
synchronization behavior of a nonlinear complex system of N globally connected oscillators …

Emergent dynamics of a generalized Lohe model on some class of Lie groups

SY Ha, D Ko, SW Ryoo - Journal of Statistical Physics, 2017 - Springer
We introduce a Lohe group which is a new class of matrix Lie groups and present a
continuous dynamical system for the synchronization of group elements in a Lohe group …

On equilibria and consensus of the Lohe model with identical oscillators

J Zhang, J Zhu, C Qian - SIAM Journal on Applied Dynamical Systems, 2018 - SIAM
Equilibria and consensus dynamics of the Lohe model with identical oscillators are
investigated under more general interconnection topologies. In the existing literatures on the …

Remarks on the complete synchronization of Kuramoto oscillators

SY Ha, HK Kim, J Park - Nonlinearity, 2015 - iopscience.iop.org
We present an improved exponential frequency synchronization estimate for globally
coupled Kuramoto oscillators. For a sufficiently large coupling, it is numerically observed that …

Emergent behaviors of Lohe tensor flocks

SY Ha, H Park - Journal of Statistical Physics, 2020 - Springer
We present a new aggregation model on the space of rank-m tensors with the same size,
and study emergent dynamics of the proposed model. Our proposed new aggregation …