Crossmark policy page

Crossmark is a multi-publisher initiative from Crossref to provide a standard way for readers to locate the current version of a piece of content. Quantum is committing to maintaining the content it publishes, and to alerting readers to changes if and when they occur.

Retraction and correction policies

Quantum is committed to ensuring high quality standards in all its publications.

Being an arXiv overlay journal the published version of every article as well as all pre-prints remain forever publicly accessible via Quantum publishes a specific version or an article also available on the arXiv. Authors can add updated versions of their work to the arXiv under the same arXiv identifier. This creates a new version.

In case Quantum is notified of mistakes in published works the following policy applies:

If the mistake is minor, such as a typo, a missing affiliation, or a typesetting error in an equation that can be corrected by a skilled reader, Quantum may update the published version of an article to a new arXiv version uploaded by the authors post publication.

If the mistake is more severe and in particular if it changes material results of a work, changes the equation numbering, changes the reference list, or any theorem, lemma, or similar, Quantum will leave the published version as is, still pointing to the version on the arXiv that was originally accepted, and instead place a note about the mistake and if available a link to an updated/corrected version of the work on that work’s page.