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Hans Wurst's user avatar
Hans Wurst's user avatar
Hans Wurst's user avatar
Hans Wurst
  • Member for 6 years, 9 months
  • Last seen this week
13 votes
Accepted

What's wrong with this "proof" that all Hamiltonians are time independent?

7 votes

Why is Avogadro constant used to calculate the number density?

6 votes

Obtaining the conjugated momentum operator after coordinate transformation

5 votes
Accepted

Why do we multiply 2 wavefunctions in the ground state instead of adding them when considering the total wavefunction?

5 votes
Accepted

On using Python to solve Time Independent Schrodinger Equation, the eigenfunctions have their values "pushed" to one of the boundaries?

4 votes

Why is Hartree-Fock considered a mean-field approach?

4 votes
Accepted

What does $V(r)$ mean in the Schrodinger equation?

4 votes
Accepted

Molecular orbital notation

4 votes

Why does Hartree-Fock (HF) theory even work?

4 votes
Accepted

Is Hartree-Fock (HF) a ground state theory?

4 votes
Accepted

I don't understand Wigner's friend paradox

3 votes
Accepted

In Quantum Mechanics is it possible to apply time evolution operator to wavefunction?

3 votes
Accepted

Dirac Formalism/Notation Question

3 votes

Why don't we get infinite energy from a continous emission spectrum?

3 votes

Why do we need large time assumption for energy conservation in electron transitions?

3 votes
Accepted

"Dot product" of kets from different spaces?

3 votes

Meaning of energy eigenstates

3 votes

Can multiple electrons transition simultaneously?

3 votes
Accepted

What is the physical meaning of a two-particle wave function?

3 votes

How to take trace ${\rm Tr}(\left |a\rangle \langle a|X|b\rangle \langle b \right|) $ in bra ket notation?

3 votes

Dirac notation and matrix

3 votes

Collapse of state vector for degenerate eigenvalues

2 votes

Fourier Transform of a short signal

2 votes
Accepted

Solve the stationary Schrödinger equation with the finite difference method

2 votes
Accepted

How to extract velocity and acceleration from $N$-body simulation data?

2 votes
Accepted

How does the Wavefunction change after constant to the potential energy?

2 votes
Accepted

Dipole moment in the Optical Interaction Hamiltonian

2 votes
Accepted

How does the tranpose conjugate of an operator act on a bra and a ket in the context of annihilation and raising operators?

2 votes

Solving the time-dependent Schrödinger equation with a time delta potential

1 vote
Accepted

How to use Density Functional Theory to get the correct energy spectrum