Skip to content
IOP Science

Classical and Quantum Gravity

About Classical and Quantum Gravity


Classical and Quantum Gravity™ welcomes original research articles on all branches of gravitational physics and the theory of spacetime. The readership of the journal is broad, comprising gravitational theorists and experimentalists in physics, mathematics and cosmology. All articles should be of interest to this broad readership and should contain a summary that places the findings in the wider context of gravitational physics.

The detailed coverage of the journal includes, but is not limited to:

  • Classical general relativity: all aspects including initial-value problems, techniques and applications of numerical relativity, exact solutions, topology and causal structure, singularities, canonical and other formalisms, Regge calculus, twistors, dynamical triangulation and other simulation methods.
  • Applications of relativity: including relativistic astrophysics, gravitational radiation, gravitational lenses, black holes and collapsed objects, and physical processes in their vicinity.
  • Experimental gravitation: including gravitational wave detection, tests of gravitational theories, and articles on data analysis and instrumentation with a clear relevance to gravitation.
  • Cosmology and the early universe: including particle physics, grand unified theories and phase transitions, inflationary cosmology, theories of galaxy formation and large-scale structure, cosmic microwave background radiation, cosmic strings and topological defects, and cosmic topology.
  • Quantum gravity: all aspects including canonical and covariant quantization, quantum field theory in curved spacetime, semiclassical quantization, topological effects, gauge and gravitational anomalies, quantum cosmology and the quantum theory of black holes and information loss.
  • Supergravity, superstrings and supersymmetry: including the structure of string theory, M-theory and its ramifications, conformal field theory, worldsheet symmetries, string vacua, compactifications and phenomenological applications, p-brane dynamics, nonperturbative aspects of string theory and M-theory.
  • Mathematical physics: relevant to gravitation, specifically gauge-covariant systems, strings and extended objects, constrained Hamiltonian systems, BRST quantization, geometric quantization, renormalization, path integrals, geometry and topology of field theories, instantons and non-linear sigma models, and differential geometry relevant to gravitation.

Classical and Quantum Gravity Exact Solutions Policy:

In the field of classical relativity, the discovery of a new exact solution does not justify publication simply for its own sake. Justification for publishing a new solution would be provided by showing for example that it has an interesting physical application or unusual geometrical properties, or that it illustrates an important mathematical point. The onus is on the author to provide convincing evidence that the solution is in fact new.

The development of a new technique or formalism for finding solutions of the field equations does not represent a sufficient advance to justify publication, unless the method is applied successfully.

Article types

Classical and Quantum Gravity welcomes submissions of the following article types:

  • Research Papers: reports of high-quality original research with conclusions representing a significant advance in the field.
  • Letters: brief articles describing a substantial advance in the field. All letters must meet one of the following publication criteria: report significant new results or an important new discovery; make important advances on or provide a solution to a critical issue; report findings of major interest to a specific community or demonstrate a new idea, experimental technique, theory or model which will have a potentially significant impact.
  • Focus issue articles: articles which will form a special collection of papers on a specific theme, often invited by the issue’s Guest Editor(s).
  • Topical reviews: comprehensive review articles normally commissioned by the Editorial Board.
  • Brief reviews: short review articles reviewing rapid, recent progress normally commissioned by the Editorial Board.
  • Comments: brief articles that comment on a previously published Classical and Quantum Gravity article. The authors of the criticised paper may be invited to submit a Reply in response.
  • Notes: brief articles that make a short, interesting point, which would not normally merit publication as a full Paper but still make a useful and novel addition to the literature. They may highlight an interesting point, clarify a common misunderstanding or confusion, or present a short new result. Unlike Comments, they do not relate to a specific published article.

Peer review

The following summary describes the peer review process for Classical and Quantum Gravity, using the ANSI/NISO Standard Terminology for Peer Review:

  • Identity transparency: single-anonymous, double-anonymous (author choice)
  • Reviewer interacts with: Editor
  • Review information published: review reports (author and reviewer opt in), author/editor communication, reviewer identities (reviewer opt in)

Our Publishing Support website provides more information on our reviewing process as well as checklists in both English and Chinese language to help authors prepare their manuscripts for submission.

If an article is not accepted for publication, we may offer the author the opportunity to transfer their submission to other suitable journals we publish.

Inclusivity and diversity

IOP Publishing recognises that there are inequalities within the scientific publishing and research ecosystems. We are committed to a progressive approach to inclusivity and diversity, and are working hard to eliminate discrimination to foster an equitable and welcoming publishing environment for all.

IOP Publishing follows Guidelines on Inclusive Language and Images in Scholarly Communication to ensure that journal articles use bias-free and culturally sensitive communication. We ask authors to please follow these guidelines in their manuscript submissions.

More information about our work on inclusivity is available on our Open Physics hub.


Classical and Quantum Gravity maintains the highest standards of publication and research ethics and is a member of the Committee for Publication Ethics (COPE). Authors are expected to comply with IOP Publishing’s Ethical Policy.

Research data

Classical and Quantum Gravity has adopted IOP Publishing’s research data policy. Please check that your article complies with the policy before submission.

Please note that this policy requires authors to include a data availability statement in their article.

For any questions about the policy please contact the journal.

Many research funders now require authors to make all data related to their research available in an online repository. Please refer to the policy for further information about research data, data repositories and data citation.

Open access

Classical and Quantum Gravity is a hybrid open access journal. Authors have the option to pay an article publication charge (APC) to publish their article on a gold open access basis under a Creative Commons Attribution (CC BY) licence. Articles published on a gold open access basis are freely available to everyone to read and reuse immediately upon publication, provided the terms of the licence are followed and clear attribution to the author is given.

Alternatively authors who do not select the gold open access option can choose a green open access route to publication.

For more information on IOP Publishing’s open access policies please see our Open access page. For our author rights policies please see our Author rights page.

Publication charges

Publication on a subscription-access basis is free of charge.

Authors have the option to pay the following article publication charge (APC) to publish their article on an open access basis under a Creative Commons Attribution (CC BY) licence.

Article publication charge* £2295 €2635 $3165
Reduced article publication charge* for Group B countries** £500 €575 $675
Reduced article publication charge for Group A countries** £0 €0 $0

*excluding VAT where applicable

**eligibility criteria can be found here

APCs only apply to articles accepted for publication; there are no submission charges.

There are no other charges for publishing in Classical and Quantum Gravity.

Transformative Agreements

Classical and Quantum Gravity is included in our transformative agreements which allow authors from some institutions to publish open access without paying an APC.

Find out if you’re covered by an agreement

If you are covered by an agreement, use our author guide to help you submit your paper.

Countries where we have transformative agreements include:
Austria, Canada, Croatia, Finland, Hungary, Ireland, Israel, Germany, Poland, The Netherlands, United Kingdom, Saudi Arabia, Slovenia, Sweden and Switzerland.

Paying for open access

Various discounts, waivers and funding arrangements are available to support our authors. Visit our Paying for open access page for further details.


Abstracting and indexing services

We work with our authors to help make their work as easy to discover as possible. Classical and Quantum Gravity is currently included in the following abstracting and discovery services:

  • Baidu Scholar
  • Chemical Abstracts Service
  • CNKI
  • EBSCO Academic Search Alumni Edition
  • EBSCO Academic Search Complete
  • EBSCO Academic Search Elite
  • EBSCO Academic Search Premier
  • EBSCO Academic Search Ultimate
  • INIS (International Nuclear Information System)
  • Inspec
  • J-Gate
  • JST
  • MathSciNet
  • MyScienceWork
  • NASA Astrophysics Data System
  • Naver Academic
  • R Discovery
  • Scilit
  • Scopus
  • Semantic Scholar
  • VINITI Abstracts Journal (Referativnyi Zhurnal)
  • Wanfang Data
  • Web of Science (Science Citation Index Expanded, Current Contents Physical, Chemical & Earth Sciences, Essential Science Indicators)
  • WTI AG
  • x-mol
  • Zentralblatt MATH

Journal metrics

Back to top