Is my expansion of the state $| x \rangle$ correct?
58445
What does the Canonical Commutation Relation (CCR) tell me about the overlap between Position and Momentum bases?
151721
Uhlmann's Theorem: proof of $\text{tr}(A^{\dagger} B) = \langle m | A \otimes B |m\rangle $
87328
Expectation of momentum in the bound state
2105
$\langle Tu\;|\;u\rangle=0,\;\forall u\in E \Longrightarrow T=0$?
59067
How to prove that if the expectation value of $A$ in any state is real, then $A$ is Hermitian?
26125
Does the canonical commutation relation fix the form of the momentum operator?
110888
Quantum states as rays as opposed to vectors
108351
Derivation of position operator in QM
90378
Coherent states of the form $|{-\alpha}\rangle$
86717
Completeness of $\langle \mathscr{C} [0, 1], \| \cdot \|_1 \rangle$
27086
proof for $\langle q| p \rangle = e^{ipq}$
55691
Are states of a quantum system represented by vectors in a Hilbert space?
65890
Proof that energy states of a harmonic oscillator given by ladder operator include all states
136678
$\hbar \rightarrow 0$ in quantum mechanics
55231
Is there a simple way of finding the eigenstates of the creation and annihilation operator in QM?
108657
Cross product of the quantum mechanical operators $\textbf{p}$ and $\textbf{A}$
129559
Unitarily evolving a separable state into an entangled one