Recent content by dextercioby

For the record, ##xp## with or without hats is not an observable, because it can't be represented directly by a selfadjoint operator, but only through a symmetrization trick $$ xp = \frac{1}{2} (xp+px) $$ at classical level, then the operator for the RHS is a representation of an observable.

I reported the OP for the LaTex part asking a mod to fix it. Got rejected, the OP should fix his math formatting by himself. But he can't do that because he doesn't understand the difference between indices "upstairs" or "downstairs". You say sloppy, I say a word beginning with <<ig>>> which I...

I've been here for 20 years. Pretty sure that even with all the technology development, there's a link here directly on the starting page to "New Posts". There is no "New Topics" link specifically, posts as new topics are listed in the "New Posts" list. I am now writing using a standard Chrome...

Alpha

Is the equality in your first paragraph an equation, or a definition of operator action?