Justification of the energy and momentum operators in quantum mechanics
41407
How to derive or justify the expressions of momentum operator and energy operator?
104244
Is the Momentum Operator a Postulate?
2451
Minimum Uncertainty Wavefunction derivation
108351
Derivation of position operator in QM
87423
Why can we treat quantum scattering problems as time-independent?
62693
Eigenspaces of angular momentum operator and its square (Casimir operator)
117499
Aufbau principle in modern quantum theory
23089
Differences between symmetric, Hermitian, self-adjoint, and essentially self-adjoint operators
13137
Why are Hermitian operators linked to observables?
126425
Consistent, complete, and generalized description of the quantum harmonic oscillator
38939
A book on quantum mechanics supported by the high-level mathematics
34021
What is the physical meaning of a "complete" Hilbert space in QM?
591
Reason for the discreteness arising in quantum mechanics?
1048
Discreteness of set of energy eigenvalues
80934
Mathematical background for Quantum Mechanics
59004
Why does time evolution operator have the form $U(t) = e^{-itH}$?
58072
The formal solution of the time-dependent Schrödinger equation