License

Progressive Physics Journal (PPJ) is a fully open-access journal. All articles are freely available to read, download, and share immediately upon publication, without subscription or registration. All articles are published under the Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0): https://creativecommons.org/licenses/by-sa/4.0/

Under this license, anyone is free to:

•     Share — copy and redistribute the material in any medium or format for any purpose, including commercially.

•     Adapt — remix, transform, and build upon the material for any purpose, including commercially.

The licensor cannot revoke these freedoms as long as the license terms are followed.

Under the following terms:

•     Attribution — appropriate credit must be given, including the authors, article title, journal name, volume, issue, year, and DOI; a link to the license must be provided; and any changes made must be indicated. This may be done in any reasonable manner, but not in any way that suggests that the authors or PPJ endorse the user or the use.

•     ShareAlike — anyone who remixes, transforms, or builds upon the material must distribute their contributions under the same license as the original.

•   No additional restrictions — legal terms or technological measures that legally restrict others from doing anything the license permits may not be applied.

License Statement on Articles

Every article published in PPJ carries the following statement on its first page and on its landing page:

Metadata

Article metadata (titles, abstracts, keywords, author names, affiliations, and references) is made freely available through the Open Journal Systems OAI-PMH interface and Crossref, and may be reused without restriction for indexing and discovery.

Earlier Volumes

Articles published in earlier volumes remain available under the license displayed on each article at the time of its publication.