Minkowski space
Noun
Meaning
Minkowski space (plural Minkowski spaces)
(mathematics, physics) A four-dimensional real vector space equipped with an inner product of signature (−,+,+,+) or (+,−,−,−), in which special relativity is formulated
Examples
Because it has no finite spatiotemporal extent, a single point of Minkowski space cannot be an occasion of experience, but is an abstraction from an infinite set of overlapping or contained occasions of experience, as explained in Process and Reality.
Certain types of world lines are called geodesics of the spacetime – straight lines in the case of Minkowski space and their closest equivalent in the curved spacetime of general relativity.
Note that this is violated for Minkowski space with a line removed, which can model a (flat) space-time with a point-like monopole on the the complement of the line.
It is also possible to associate a substantially similar notion of spinor to Minkowski space in which case the Lorentz transformations of special relativity play the role of rotations.
Consequently, we are now dealing with a curved generalization of Minkowski space.
In contrast, the Standard Model is not background independent, with Minkowski space enjoying a special status as the fixed background space-time.