query: Perturbation theory in quantum mechanics: assumptions on eigenvectors
positive_passages.docid: 143157
positive_passages.text: Perturbation theory: justifying expansion in terms of eigenstates of the basis Hamiltonian
negative_passages.docid: 121197
negative_passages.text: Eigenvalues and eigenfunctions of the exponential potential $ V(x)=\exp(|x|) $
negative_passages.docid: 128932
negative_passages.text: Is my expansion of the state $| x \rangle$ correct?
negative_passages.docid: 80934
negative_passages.text: Mathematical background for Quantum Mechanics
negative_passages.docid: 158387
negative_passages.text: Find eigen energies of time-independent Schrödinger equation
negative_passages.docid: 88971
negative_passages.text: An approximate eigenvalue for $ T \in B(X) $.
negative_passages.docid: 26417
negative_passages.text: Why do we use Hermitian operators in QM?
negative_passages.docid: 55231
negative_passages.text: Is there a simple way of finding the eigenstates of the creation and annihilation operator in QM?
negative_passages.docid: 18321
negative_passages.text: Smoothness constraint of wave function
negative_passages.docid: 131091
negative_passages.text: Srednicki's Path Integrals: Ground-State to Ground-State Transition Amplitude in the Presence of a Perturbation
negative_passages.docid: 112987
negative_passages.text: Exponential of ladder operators acting on a Fock state
negative_passages.docid: 103579
negative_passages.text: Why are the zeroth order terms in degenerate perturbation theory the eigenstates of the perturbing Hamiltonian?
negative_passages.docid: 98090
negative_passages.text: Matrix mechanics for those with wave mechanics background
negative_passages.docid: 53993
negative_passages.text: Can Eigenvalues[] and Eigenvectors[] be assumed to return the same ordering?
negative_passages.docid: 9250
negative_passages.text: Can the zero vector be an eigenvector for a matrix?
negative_passages.docid: 30882
negative_passages.text: Proving Invertibility and Eigenvalues
negative_passages.docid: 53863
negative_passages.text: Making a non-diagonalizable matrix diagonalizable with an small perturbations