Four-frequency
id:
four-frequency-186-15025299
title:
Four-frequency
text:
The four-frequency of a massless particle, such as a photon, is a four-vector defined by
- N a = where ν is the photon's frequency and n ^ is a unit vector in the direction of the photon's motion. The four-frequency of a photon is always a future-pointing and null vector. An observer moving with four-velocity V b will observe a frequency
- 1 c η = 1 c η a b N a V b Where η is the Minkowski inner-product (+−−−) with covariant components η a b. Closely related to the four-frequency is the fou
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Four-frequency
date created:
2005-04-17T12:31:22Z
date modified:
2024-09-08T01:51:55Z
main entity:
{"identifier":"Q5474922","url":"https://www.wikidata.org/entity/Q5474922"}
image:
fields total:
13
integrity:
14