Posted: Oct 06, 2011 8:59 pm
by Teuton
hackenslash wrote:No. In physics, an operator is more than a mathematical entity.


Nothing can be both a mathematical and a physical entity.

hackenslash wrote:
For example, energy, momentum and spin are all operators, and are real quantities.


"Physical Quantities:
Hermitian operators in the Hilbert space associated with a system represent physical quantities, and their eigenvalues represent the possible results of measurements of those quantities."


(http://plato.stanford.edu/entries/qm/)

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