Eq. (2.4.7) of Weinberg, "Lectures on QM" from eq. (2.4.6)
26125
Does the canonical commutation relation fix the form of the momentum operator?
152686
How to derive $E=mc^{2}$?
58919
Prerequisites for ‘Quantum field theory and representation theory: a sketch’ [arXiv:hep-th/0206135]
77742
Queries about rotational groups $\mathrm{SO}(3)$ and $\mathrm{SU}(2)$ in QM
27086
proof for $\langle q| p \rangle = e^{ipq}$
75225
Exercise $ 3.4.15 $ of David Marker’s “Model Theory”.
86901
Galilean covariance of the Schrodinger equation
122603
How does $\mathcal E(\rho)=\mathrm{Tr}_{env}[U(\rho\otimes\rho_{env})U^\dagger]$ turn into $P_0\rho P_0+P_1\rho P_1$?
123286
Taylor series for unitary operator in Weinberg
72613
FreeQ and arguments of Hypergeometric2F1
58122
QM without complex numbers
98786
Video lectures on graduate level Classical Electrodynamics
7447
Self Teaching QFT
134314
Good reading on the Keldysh formalism
61304
Normal ordering of the commutator between annihilation and creation operator
114247
Allowed Wave Functions of System
29952
Time-ordering vs normal-ordering and the two-point function/propagator