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Updated: May 18, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Localized pulses for the quintic derivative nonlinear Schrödinger equation on a continuous-wave background
1Australian Research Council Centre of Excellence for Mathematics and Statistics of Complex Systems, School of Mathematics, The University of New South Wales, Sydney, NSW 2052, Australia.
Researchers identified a "gray" solitary pulse in quintic derivative nonlinear Schrödinger equations. This method isolates wave patterns using integrals of motion, applicable to hydrodynamic wave packets and negative refractive index media.
Area of Science:
- Nonlinear optics
- Mathematical physics
Background:
- Quintic derivative nonlinear Schrödinger equations are relevant in studying hydrodynamic wave packets and materials with a negative refractive index.
- Understanding wave propagation in these complex systems is crucial for various physics applications.
Purpose of the Study:
- To propose a novel procedure for isolating propagating wave patterns in quintic derivative nonlinear Schrödinger equations.
- To identify specific wave solutions, such as solitary pulses, within these models.
Main Methods:
- The proposed method utilizes two integrals of motion to analyze and isolate wave patterns.
- Mathematical analysis of the quintic derivative nonlinear Schrödinger equations.
Main Results:
- A procedure to isolate propagating wave patterns was successfully developed.
- A specific solution, a "gray" solitary pulse (a dark localized mode with a nonzero minimum intensity on a continuous-wave background), was identified.
Conclusions:
- The developed method effectively isolates wave patterns in quintic derivative nonlinear Schrödinger equations.
- The identification of the "gray" solitary pulse demonstrates the practical application of the method in understanding nonlinear wave phenomena.
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