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Hilbert-space
New post in Hilbert-space
Norm of quantum state in three dimensions
September 18th, 2020
quantum-mechanics
hilbert-space
normalization
Expectation value of Commutator of Hermitian operators
April 13th, 2020
hilbert-space
operators
quantum-mechanics
What does a zero eigenvalue mean to its eigenstate?
November 19th, 2020
linear-algebra
operators
quantum-mechanics
eigenvalue
hilbert-space
Orthonormality condition in quantum mechanics
August 1st, 2022
born-rule
hilbert-space
quantum-mechanics
wavefunction
probability
Units of a dirac delta function in quantum mechanics
August 1st, 2022
dirac-delta-distributions
normalization
quantum-mechanics
hilbert-space
dimensional-analysis
How to determine whether a wavefunction is an acceptable quantum state?
August 1st, 2022
quantum-mechanics
hilbert-space
wavefunction
Difference between eigenstate and basis vector?
August 1st, 2022
quantum-mechanics
hilbert-space
quantum-states
Hermitian conjugation of a product of operators
March 9th, 2020
homework-and-exercises
operators
quantum-mechanics
hilbert-space
Trouble understanding method used in the proof of Kinetic Energy operator is Hermitian
August 1st, 2022
hilbert-space
wavefunction
momentum
operators
quantum-mechanics
Why normalizing spin state is different? Why no need dxdydz?
August 1st, 2022
quantum-mechanics
hilbert-space
spinors
Orthogonal eigenfunctions
August 1st, 2022
parity
eigenvalue
wavefunction
hilbert-space
quantum-mechanics
Creation and annihilation operators in Hamiltonian
August 1st, 2022
second-quantization
many-body
hilbert-space
operators
quantum-mechanics
What is the necessity of wave packet in studying matter wave?
August 1st, 2022
scattering
hilbert-space
quantum-mechanics
wavefunction
Eigenvectors and eigendecomposition of Pauli matrices, why isn't there many?
August 1st, 2022
operators
quantum-mechanics
hilbert-space
linear-algebra
eigenvalue
Eigenvalue equation of orbital angular momentum operator $L^2$ and $L_z$
August 1st, 2022
spherical-harmonics
quantum-mechanics
hilbert-space
operators
angular-momentum
Eigenvalues and functions in quantum mechanics
August 1st, 2022
quantum-mechanics
operators
hilbert-space
wavefunction
eigenvalue
Matrix for Ladder Operators?
August 1st, 2022
hilbert-space
operators
quantum-mechanics
angular-momentum
representation-theory
Harmonic oscillator's lowering operator acting on state bra
March 14th, 2020
quantum-mechanics
harmonic-oscillator
hilbert-space
operators
Same quantum states represented in different basis
April 16th, 2020
fourier-transform
hilbert-space
wavefunction
momentum
quantum-mechanics
Why is a two-qubit state described by a point in a 15-dimensional space?
January 12th, 2020
hilbert-space
quantum-mechanics
quantum-states
density-operator
quantum-computer
Ladder operators and the Hermitian adjoint
August 1st, 2022
quantum-mechanics
hilbert-space
operators
What are Hermitian conjugates in this context?
January 20th, 2021
terminology
operators
hilbert-space
quantum-mechanics
Why/How do the coefficients associated with atomic orbitals superposed to form hybrid orbital determine their spatial orientation?
October 16th, 2020
hilbert-space
atomic-physics
orbital-motion
quantum-mechanics
Aren't all spin states (up, down, left, right, in, out) orthogonal?
August 1st, 2022
quantum-mechanics
angular-momentum
quantum-spin
hilbert-space
Normalisation factor $\psi_0$ for wave function $\psi = \psi_0 \sin(kx-\omega t)$
February 20th, 2020
quantum-mechanics
normalization
hilbert-space
probability
wavefunction
Hermitian operator followed by another hermitian operator – is it also hermitian?
December 10th, 2020
operators
hilbert-space
commutator
quantum-mechanics
observables
Proving orthogonality of eigenstates of a Hamiltonian
August 1st, 2022
quantum-mechanics
eigenvalue
hamiltonian
hilbert-space
homework-and-exercises
Energy Eigenfunction Completeness
August 1st, 2022
schroedinger-equation
quantum-mechanics
wavefunction
hilbert-space
Square of annihilation operator
October 30th, 2020
quantum-mechanics
hilbert-space
operators
quantum-field-theory
Unitary Transfomation from One Basis to Another
August 1st, 2022
quantum-mechanics
operators
hilbert-space
linear-algebra
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