Category theory in physics

[MathematicalPhysicist]

is category theory being used in physics if yes in which branch in physics?

thanks in advance.

 

[selfAdjoint]

Yes category theory is used in quantum physics including the latest effort in post string theory.

Here's a link to John Baez's explanation of how category theory relates to basic quantum mechanics. http://www.math.ucr.edu/home/baez/categories.html

 

[rutwig]

Originally posted by loop quantum gravity
is category theory being used in physics if yes in which branch in physics?

Take for example the quantization problem of Drinfel'd and Hopf structures. They are developed in a formal categorical sense.