Dot product between momentum and position $ \langle p|x \rangle$
58445
What does the Canonical Commutation Relation (CCR) tell me about the overlap between Position and Momentum bases?
152932
Proof: $\det\pmatrix{\langle v_i , v_j \rangle}\neq0$ $\iff \{v_1,\dots,v_n\}~\text{l.i.}$
39080
What is the spectrum of $\hat x \hat p + \hat p \hat x$?
83967
Why is $|\Psi|^2$ the probability density?
140835
Inner Product Space Inequality
26125
Does the canonical commutation relation fix the form of the momentum operator?
51276
Prove that in Bell's inequality $\langle{\Psi}|\left(\bf{\sigma}\cdot\bf{a}\right)\left(\bf{\sigma}\cdot\bf{b}\right)|{\Psi}\rangle=-\bf a \cdot\bf b$
87962
Why is $\langle \textbf R \rangle =Tr \rho R$ here $\rho$ is the state density matrix
62693
Eigenspaces of angular momentum operator and its square (Casimir operator)
16692
a representation condition of Hilbert space
13768
Origin of the dot and cross product?
153690
is there any uncertainty on the free particle with a definite momentum $\vec p$?
112398
Proof that the effective/proper action is the generating functional of one-particle-irreducible (1PI) correlation functions
156863
Uncertainty Principle for a Totally Localized Particle
82201
How does the momentum operator act on state kets?
83050
Show that $P[x]+\langle x\rangle $ is a prime ideal of $R[x]$.
89004
Where does the partial derivative come from in Sakurai's derivation of the momentum operator?