Related Experiment Video
Updated: Aug 16, 2025
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
9.1K
Diverse coherence-resonance chimeras in coupled type-I excitable systems.
Taniya Khatun1, Biswabibek Bandyopadhyay1, Tanmoy Banerjee1
1Chaos and Complex Systems Research Laboratory, Department of Physics, University of Burdwan, Burdwan 713 104, West Bengal, India.
Physical Review. E
|December 23, 2022
Summary
Researchers observed coherence-resonance chimera in coupled type-I excitable systems, a phenomenon previously only seen in type-II systems. This study highlights noise
Area of Science:
- Nonlinear Dynamics
- Complex Systems
- Computational Neuroscience
Background:
- Coherence-resonance chimera, a hybrid phenomenon combining coherence-resonance and classical chimeras, was previously identified in type-II excitable systems.
- The occurrence of coherence-resonance chimera in type-I excitable systems remained unobserved, posing questions about its generality.
Purpose of the Study:
- To investigate and report the occurrence of coherence-resonance chimera in coupled type-I excitable systems.
- To explore the influence of noise intensity on the emergence of this phenomenon in type-I systems.
- To identify novel chimera patterns resulting from the interplay of classical and coherence-resonance effects.
Main Methods:
- Utilized a paradigmatic model of type-I excitability: the saddle-node infinite period (SNIPER) model.
- Simulated coupled SNIPER systems under varying noise intensities.
- Employed quantitative measures and parameter space mapping to analyze observed phenomena.
Main Results:
- Successfully demonstrated the emergence of coherence-resonance chimera in coupled type-I excitable systems.
- Identified an optimal range of noise intensity for the appearance of coherence-resonance chimera.
- Discovered a novel chimera pattern, a mixture of classical chimera and coherence-resonance chimera.
Conclusions:
- Coherence-resonance chimera is a general phenomenon observable in different types of excitable systems.
- Noise plays a crucial role in the dynamics of coupled excitable systems, facilitating complex emergent behaviors.
- This study deepens the understanding of noise-induced phenomena and chimera patterns in complex networks.
Related Concept Videos
02:52Resonance
54.7K
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N-O and N=O bonds.
54.7K
02:16Resonance and Hybrid Structures
17.3K
According to the theory of resonance, if two or more Lewis structures with the same arrangement of atoms can be written for a molecule, ion, or radical, the actual distribution of electrons is an average of that shown by the various Lewis structures.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.
17.3K
01:26Resonance in an AC Circuit
2.1K
The property of an inductor makes it resist any change in the current passing through it, while the property of a capacitor is to build up the charge across its terminals. Hence, if an inductor and capacitor are connected in series, they have opposite effects on the relative phase between current and voltage. The current through the circuit undergoes forced oscillation at the frequency of the source. The resistance term in an R-L-C circuit acts as a damping term because power is dissipated...
2.1K
01:12Double Resonance Techniques: Overview
262
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...
262
01:19Concept of Resonance and its Characteristics
5.1K
If a driven oscillator needs to resonate at a specific frequency, then very light damping is required. An example of light damping includes playing piano strings and many other musical instruments. Conversely, to achieve small-amplitude oscillations as in a car's suspension system, heavy damping is required. Heavy damping reduces the amplitude, but the tradeoff is that the system responds at more frequencies. Speed bumps and gravel roads prove that even a car's suspension system is not...
5.1K
01:24Characteristics of Series Resonant Circuit
296
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
296