The two quantum conditions restrict the total angular momentum and the " z "-component of the angular momentum to be the integers " l ", " m ".
12.
The quantum condition demands that the integral of the constant \ scriptstyle l _ \ phi as \ scriptstyle \ phi varies from 0 to 2 \ pi is an integer multiple of " h ":
13.
To make the transition from classical to quantum theory, we must, according to the general principles proclaimed in Chap . 1, elevate coordinates and their conjugate momenta to operators in the Hilbert space of possible physical states and impose quantum conditions upon them.
14.
De Broglie had shown how to reproduce the discrete energy states in Einstein's framework the quantum condition is the standing wave condition, and this gave hope to those in the Einstein school that all the discrete aspects of quantum mechanics would be subsumed into a continuous wave mechanics.
