Posted:

**Oct 07, 2011 2:52 pm**hackenslash wrote:Teuton wrote:

This means that operators aren't physical quantities (properties) themselves but mathematical representations thereof.

Still getting all your definitions from the dictionary of what colour is my lint.

http://hyperphysics.phy-astr.gsu.edu/hb ... moper.html

http://en.wikipedia.org/wiki/Operator_% ... _Operators

"â€¦The other sorts of mathematical objects which we shall need to know something about are operators.

Operators are mechanisms for making new vectors out of old ones. An operator on a vector space, more particularly, is some definite prescription for taking every vector in that space into some other vector; it is a mapping (for those readers who know the mathematical meaning of that word) of a vector space into itself."

(Albert, David Z. Quantum Mechanics and Experience. Cambridge, MA: Harvard University Press, 1992. p. 25)

Mappings are functions, functions are abstract mathematical objects, and as such they aren't concrete physical objects.

(See: http://mathworld.wolfram.com/Map.html)