630 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Basic ScienceKR23 papers
- National Research and Innovation AgencyID23 papers
- Sejong UniversityKR23 papers
- Seoul National UniversityKR23 papers
- University of IndonesiaID22 papers
- Korea Research Institute of Standards and ScienceKR21 papers
- Kyungpook National UniversityKR21 papers
- The University of TokyoJP21 papers
- Ewha Womans UniversityKR20 papers
- Sungkyunkwan UniversityKR20 papers
- Yale UniversityUS19 papers
- Korea University of Science and TechnologyKR18 papers
19 papers · 1 filter
Pearl supratransmission in a boundary-driven two-dimensional nonlinear Schrödinger equation with a hole
Rudy Kusdiantara, Hadi Susanto
We investigate energy supratransmission in a boundary-driven two-dimensional nonlinear Schrödinger equation with a central hole. Harmonic forcing with azimuthal modulation generate…
Spectral and Dynamical Properties of the Fractional Nonlinear Schrödinger Equation under Harmonic Confinement
R. Kusdiantara, M. F. Adhari, H. A. Mardi +2
We investigate the spectral and dynamical properties of the fractional nonlinear Schrödinger (fNLS) equation with harmonic confinement. In this setting, the classical Laplacian is…
In-band supratransmission in nonlinear flat band lattices
R. Kusdiantara, M. Wijaya, M. F. Adhari +1
Studying wave propagation in nonlinear discrete systems is essential for understanding energy transfer in lattices. While linear systems prohibit wave propagation within the natura…
Nonlinear states of the conservative complex Swift-Hohenberg equation
Rudy Kusdiantara, Hadi Susanto
We consider the conservative complex Swift-Hohenberg equation, which belongs to the family of nonlinear fourth-order dispersive Schrödinger equations. In contrast to the well-studi…
From Snaking to Isolas: A One-Active-Site Approximation in Discrete Optical Cavities
R. Kusdiantara, H. Susanto, A. R. Champneys
We investigate time-independent solutions of a discrete optical cavity model featuring saturable Kerr nonlinearity, a discrete version of the Lugiato-Lefever equation. This model s…
Analysis of multistability in discrete quantum droplets and bubbles
R. Kusdiantara, H. Susanto, T. F. Adriano +1
This study investigates the existence and stability of localized states in the discrete nonlinear Schrödinger (DNLS) equation with quadratic and cubic nonlinearities, describing th…
Snakes on Lieb lattice
R. Kusdiantara, F. T. Akbar, N. Nuraini +2
We consider the discrete Allen-Cahn equation with cubic and quintic nonlinearity on the Lieb lattice. We study localized nonlinear solutions of the system that have linear multista…
Justification of the discrete nonlinear Schrödinger equation from a parametrically driven damped nonlinear Klein-Gordon equation and numerical comparisons
Y. Muda, F. T. Akbar, R. Kusdiantara +2
We consider a damped, parametrically driven discrete nonlinear Klein-Gordon equation, that models coupled pendula and micromechanical arrays, among others. To study the equation, o…
Snakes in square, honeycomb, and triangular lattices
R. Kusdiantara, H. Susanto
We present a study of time-independent solutions of the two-dimensional discrete Allen-Cahn equation with cubic and quintic nonlinearity. Three different types of lattices are cons…
Reduction of damped, driven Klein-Gordon equations into a discrete nonlinear Schrödinger equation: justification and numerical comparisons
Yuslenita Muda, Fiki T. Akbar, Rudy Kusdiantara +2
We consider a discrete nonlinear Klein-Gordon equations with damping and external drive. Using a small amplitude ansatz, one usually approximates the equation using a damped, drive…
Displaced phase-amplitude variables for waves on finite background
E. van Groesen, Andonowati, N. Karjanto
Wave amplification in nonlinear dispersive wave equations may be caused by nonlinear focussing of waves from a certain background. In the model of nonlinear Schrödinger equation we…
Variational approximations of soliton dynamics in the Ablowitz-Musslimani nonlinear Schrödinger equation
Rahmi Rusin, Rudy Kusdiantara, Hadi Susanto
We study the integrable nonlocal nonlinear Schrödinger equation proposed by Ablowitz and Musslimani, that is considered as a particular example of equations with parity-time ($\mat…
Variational approximations using Gaussian ansatz, false instability, and its remedy in nonlinear Schrödinger lattices
Rahmi Rusin, Rudy Kusdiantara, Hadi Susanto
We study the fundamental lattice solitons of the discrete nonlinear Schrödinger (DNLS) equation and their stability via a variational method. Using a Gaussian ansatz and comparing…
Solitons in a chain of charge-parity-symmetric dimers
O. B. Kirikchi, B. A. Malomed, N. Karjanto +2
We consider an array of dual-core waveguides, which represent an optical realization of a chain of dimers, with an active (gain-loss) coupling between the cores, opposite signs of…
Snakes and ghosts in a parity-time-symmetric chain of dimers
H. Susanto, R. Kusdiantara, N. Li +4
We consider linearly coupled discrete nonlinear Schrödinger equations with gain and loss terms and with a cubic-quintic nonlinearity. The system models a parity-time ()-s…
Homoclinic snaking in the discrete Swift-Hohenberg equation
Rudy Kusdiantara, Hadi Susanto
We consider the discrete Swift-Hohenberg equation with cubic and quintic nonlinearity, obtained from discretizing the spatial derivatives of the Swift-Hohenberg equation using cent…
Black holes will break up solitons and white holes may destroy them
Fiki T. Akbar, Bobby E. Gunara, Hadi Susanto
We consider a quantum analogue of black holes and white holes using Bose-Einstein condensates. The model is described by the nonlinear Schrodinger equation with a 'stream flow' pot…
Application of Artificial Neural Network in Jitter Analysis of Dispersion-Managed Communication System
F. P. Zen, B. E. Gunara, W. Hidayat +3
Artificial Neural Network (ANN) is used as numerical methode in solving modified Nonlinear Schroedinger (NLS) equation with Dispersion Managed System (DMS) for jitter analysis. We…
Social Balance Theory
Deni Khanafiah, Hokky Situngkir
We construct a model based on social balance theory proposed by Fritz Heider to analyze the interpersonal network among social agents. The model of social balance theory provides u…