String Theory
In string theory, light-cone gauge fixes the reparameterization invariance on the world sheet by
where is a constant and is the worldsheet time.
The advantage of light-cone gauge is that all ghosts and other unphysical degrees of freedom can be eliminated. The disadvantage is that some symmetries such as Lorentz symmetry become obscured (they become non-manifest, i.e. hard to prove).
Read more about this topic: Light Cone Gauge
Famous quotes containing the words string and/or theory:
“... looped with the creep of varying light,
Monkey-brown, fish-grey, a string of infected circles
Loitering like bullies, about to coagulate....”
—Philip Larkin (1922–1986)
“... the first reason for psychology’s failure to understand what people are and how they act, is that clinicians and psychiatrists, who are generally the theoreticians on these matters, have essentially made up myths without any evidence to support them; the second reason for psychology’s failure is that personality theory has looked for inner traits when it should have been looking for social context.”
—Naomi Weisstein (b. 1939)