en Measure (physics)

It is proposed that this article be deleted because of the following concern:

This is a stub that has been long neglected and can't be fixed. There are many uses of the term "measure" in physics; this describes only one, and everything that could be said about that meaning belongs in a different article, but because of the multiplicity of meaning, this page title would be a bad redirect. (proposed by XOR'easter)

If you can address this concern by improving, copyediting, sourcing, renaming, or merging the page, please edit this page and do so. You may remove this message if you improve the article or otherwise object to deletion for any reason. Although not required, you are encouraged to explain why you object to the deletion, either in your edit summary or on the talk page. If this template is removed, do not replace it.

The article may be deleted if this message remains in place for seven days, i.e., after 06:47, 14 December 2024 (UTC).

If you created the article, please don't be offended. Instead, consider improving the article so that it is acceptable according to the deletion policy.
Find sources: "Measure" physics – news · newspapers · books · scholar · JSTOR

Another editor has reviewed this page's proposed deletion, endorses the proposal to delete, and adds:

Agree with nom arguments. Content is covered somewhere else, and name is vastly too broad to serve as reasonable redirect. --Elmidae (talk · contribs) 09:08, 7 December 2024 (UTC)

If you remove the {{proposed deletion/dated}} tag above, please also remove this {{Proposed deletion endorsed}} tag.

This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Measure" physics – news · newspapers · books · scholar · JSTOR (August 2024) (Learn how and when to remove this message)

The measure in quantum physics is the integration measure used for performing a path integral.

In quantum field theory, one must sum over all possible histories of a system. When summing over possible histories, which may be very similar to each other, one has to decide when two histories are to be considered different, and when they are to be considered the same, in order not to count the same history twice. This decision is coded within the concept of the measure by an observer. The possible histories can be deformed continuously, and therefore the sum is in fact an integral, known as path integral.

In the limit where the sum is becoming an integral, the concept of the measure described above is replaced by an integration measure.

Measure (physics)

See also