Related Experiment Video
Updated: Feb 6, 2026

10:30
High-throughput Analysis of Locomotor Behavior in the Drosophila Island Assay
Published on: November 5, 2017
9.2K
Charting Islands of Stability with Multioscillators in anti-de Sitter space
Matthew W Choptuik1, Jorge E Santos2, Benson Way1
1Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, British Columbia V6T 1W9, Canada.
Physical Review Letters
|August 8, 2018
Summary
We discovered new oscillating solutions in anti-de Sitter (AdS) space that reveal "islands of stability." These findings are valid on any timescale, offering a robust understanding of AdS dynamics.
Area of Science:
- Theoretical Physics
- Cosmology
- String Theory
Background:
- Anti-de Sitter (AdS) space is a key concept in theoretical physics, particularly in the context of the AdS/CFT correspondence.
- Understanding the stability and dynamics of solutions within AdS is crucial for developing comprehensive physical theories.
Purpose of the Study:
- To propose and investigate a new family of solutions in anti-de Sitter space.
- To explore the stability properties of these novel solutions and their implications for mapping "islands of stability."
- To analyze the generic behavior of these solutions, including collapse and noncollapse scenarios.
Main Methods:
- Analytical proposal of an infinite-parameter family of oscillating solutions.
- Numerical construction of two-frequency solutions within AdS.
- Exploration of the parameter space of these solutions.
Main Results:
- Identified an infinite-parameter family of solutions in anti-de Sitter space oscillating on noncommensurate frequencies.
- Observed that some solutions exhibit stability under perturbation, suggesting potential for mapping AdS "islands of stability."
- Numerical analysis revealed that both collapse and noncollapse are generic outcomes near AdS.
Conclusions:
- The discovered oscillating solutions provide a new framework for studying AdS dynamics.
- These solutions offer a method to map regions of stability within anti-de Sitter space.
- The findings are valid across all timescales and do not depend on perturbation theory, offering a more general understanding.
Related Concept Videos
Run Charts
294
Run charts serve as an essential instrument for visualizing the performance of various processes over time, enabling the identification of trends and patterns crucial for quality improvement. These charts map out a series of data points chronologically, offering insights into the stability and efficiency of a process. A run chart's creation involves plotting data points on a graph, with the time intervals on the horizontal axis and the specific measurements on the vertical axis. For...
294
The R Chart
420
In statistical process control, control charts, particularly R charts, are instrumental in monitoring process variations and identifying non-random patterns that run charts might miss. R charts track the variability within process subgroups, which is crucial when standard deviation use is impractical or unknown process variations exist.
R charts are pivotal for pinpointing shifts in process variability. Stability is indicated when all data points remain within the defined upper and lower...
R charts are pivotal for pinpointing shifts in process variability. Stability is indicated when all data points remain within the defined upper and lower...
420
Nuclear Stability
23.3K
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together...
To hold positively charged protons together...
23.3K
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
1.8K
Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
1.8K
Pareto Chart
7.8K
A Pareto chart is a bar graph or a combination of both line and bar graphs. The bar lengths represent the individual values or the frequency, while the lines represent the cumulative total values. In this chart, the longest bars are arranged on the left and the shortest bars on the right, which makes it easier to read and interpret the data. It can also be called a Pareto diagram or Pareto analysis.
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
7.8K
Interpreting R Charts
355
R chart, or range chart, is a fundamental tool in statistical process control used to monitor the variability within a process. It complements the X-bar (x̄) chart by focusing on the range of the data, rather than individual values, providing a clear picture of the process dispersion over time.
An R chart plots the range of subsets of measurements collected from a process. Each point on the chart represents the range—defined as the difference between the maximum and minimum...
An R chart plots the range of subsets of measurements collected from a process. Each point on the chart represents the range—defined as the difference between the maximum and minimum...
355

