How can the energy eigenkets and position eigenkets of a quantum system both be complete?
14166
Hilbert space of harmonic oscillator: Countable vs uncountable?
118026
Energy conservation and quantum measurement
38878
Why are eigenfunctions which correspond to discrete/continuous eigenvalue spectra guaranteed to be normalizable/non-normalizable?
56266
Potential energy and the work energy theorem
1491
Correct spaces for quantum mechanics
1031
When does Hamiltonian equals to energy of the system?
38216
What would be the Slater's determinant representation for an excited state?
14989
In quantum mechanics, given certain energy spectrum can one generate the corresponding potential?
54668
Proof for the completeness of eigenfunctions of a self-adjoint operator
157297
Should the eigenkets be weighted in $|P\rangle = \sum\limits_{r}|\xi^r\rangle$?
29952
Time-ordering vs normal-ordering and the two-point function/propagator
135300
Energies and numbers of bound states in finite potential well
55615
Can a single molecule have a state?
629
How are Quantum Mechanical energy levels related to atom shells?
131091
Srednicki's Path Integrals: Ground-State to Ground-State Transition Amplitude in the Presence of a Perturbation
137319
How is the joint state of these qubits derived?
113275
How to find the reduced density matrix of a four-qubit system?