Journal profile · Physics, Mathematical
CHAOS
ISSN 1054-1500 · eISSN 1089-7682 · American Institute of Physics · UNITED STATES · Quarterly · Founded 1991
CHAOS: CAS Zone 3 · Mathematics (2025 upgraded edition); impact factor 3.21; hybrid open access; median 99 days to acceptance (127 articles, last 24 months); community-reported acceptance: fairly hard; 665 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
CHAOS is published by American Institute of Physics and is in Zone 3 of Mathematics in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Nonlinear Dynamics and Pattern Formation, Chaos control and synchronization and stochastic dynamics and bifurcation, together about 39.2% of its articles. Its main subfields are Statistical and Nonlinear Physics. (generated from OpenAlex topic counts and CAS ranking data)
Chaos is devoted to increasing the understanding of nonlinear phenomena and describing the manifestations in a manner comprehensible to researchers from a broad spectrum of disciplines.
From the journal's Aims & Scope
Research area (LetPub): Physics, Mathematical
Editor-in-chief Michael SmallPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Nonlinear Dynamics and Pattern FormationComputer Science19.2%
- Chaos control and synchronizationPhysics and Astronomy11.3%
- stochastic dynamics and bifurcationPhysics and Astronomy8.7%
- Quantum chaos and dynamical systemsPhysics and Astronomy7.7%
- Neural dynamics and brain functionNeuroscience6.7%
- Complex Systems and Time Series AnalysisEconomics, Econometrics and Finance4.6%
- Complex Network Analysis TechniquesPhysics and Astronomy4.2%
- Opinion Dynamics and Social InfluencePhysics and Astronomy3.1%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Mathematics Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 3 |
| Minor | Mathematics, Applied | Zone 3 |
| Minor | Physics, Mathematical | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Mathematics Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 2 |
| Minor | Mathematics, Applied | Zone 2 |
| Minor | Physics, Mathematical | Zone 2 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Mathematics Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Mathematics | Zone 2 |
| Minor | Physics, Mathematical | Zone 2 |
| Minor | Mathematics, Applied | Zone 3 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 3.21LetPub ·
- CiteScore 2026-06
- 5.1LetPub ·
- SJR 2026-06
- 0.8LetPub ·
- SNIP 2026-06
- 1.07LetPub ·
- h-index
- 93LetPub ·
- h-index
- 157OpenAlex ·
- i10-index
- 4,762OpenAlex ·
- 2-year mean citedness
- 3.83OpenAlex ·
- Self-citation rate
- 18.2%LetPub ·
- Share of gold OA articles
- 14.49%LetPub ·
Volume
- Articles per year
- 656LetPub ·
Articles by year OpenAlex count · 9,239 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 481 | 148 | 226 |
| 2025 | 665 | 238 | 2,171 |
| 2024 | 652 | 243 | 4,498 |
| 2023 | 581 | 267 | 5,837 |
| 2022 | 520 | 254 | 6,245 |
| 2021 | 546 | 262 | 7,526 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with PubMed · to
99 daysMedian, submission to acceptance · P25–P75 62 days – 132 days
- Acceptance to online
- —
- Submission to online
- —
- Sample
- 127 articles with submission and acceptance dates (1,266 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 3 monthsLetPub ·
- Average acceptance (community reports)
- Fairly hardLetPub ·
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
No source has fee information yet; check the journal's website.
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Profile
Publication details and official links
- Publisher
- American Institute of Physics
- Country or region
- UNITED STATES
- Language
- English
- Frequency
- Quarterly
- Founded
- 1991
- ISSN
- 1054-1500
- Electronic ISSN
- 1089-7682
- Latest issue on the website
- Volume 36, Issue 8 (August 2026)
- Official links
- Journal homepage ↗LetPub
- Submission system ↗LetPub
FAQ
Frequently asked questions about CHAOS
What CAS zone is CHAOS in?
In the 2025 upgraded edition of the CAS Journal Ranking, CHAOS is in Zone 3 of Mathematics, and in Zone 3 of the minor category Mathematics, Applied / Physics, Mathematical. In the 2026 Xinrui edition it is in Zone 2 of Mathematics. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of CHAOS?
The latest impact factor listed by LetPub is 3.21; CiteScore 5.1, h-index 157.
How long does peer review take at CHAOS?
Based on the dates recorded on 127 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 99 days (interquartile range 62–132 days); authors report an average review time of about 3 months; the community-reported acceptance is “Fairly hard”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index CHAOS?
According to LetPub and DOAJ records, CHAOS is indexed in SCIE and Scopus.
Is CHAOS open access, and what is the APC?
CHAOS is a hybrid journal. Fee information is not available yet; check the journal's website.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .