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ProfM
  • Member for 2 years, 8 months
  • Last seen this week
14 votes
Accepted

Why do we use the imaginary time evolution in simulations of some quantum system?

6 votes

Justification of the energy and momentum operators in quantum mechanics

5 votes

Is there a difference between a quantum state and a quantum wave function?

3 votes

Solving expectation value of product of position and momentum

3 votes

Parity and degeneracy

3 votes
Accepted

Is there any reason why $N\ kg^{-1}$ shouldn't be used as the units for acceleration?

3 votes

Can many-particle wave functions be imagined in 3 dimensions - instead of $3N$ dimensions?

2 votes

In a simple pendulum, what is the tension in string either $T= mg\cos\alpha$ or $T= mg/\cos\alpha$?

2 votes

Expansion Postulate Quantum Mechanics

2 votes

Initial guess for electron density in density functional theory

2 votes

Imaginary and real parts of a ground state wave function

2 votes

Is the question asking for the primitive translation vector of simple cubic or reciprocal lattice?

2 votes
Accepted

Hydrogen atom at $T=0K$

2 votes

Measuring the phonon dispersion at edge of Brillouin Zone?

2 votes

Is this the reason for vanishing of wavefunction beyond the infinite walls?

1 vote
Accepted

Why does commutativity mean that two observables can be measured together?

1 vote

Primitive Translations in Diamond Lattice

1 vote
Accepted

Weyl point? Weyl node?

1 vote
Accepted

Degree of kinetic energy component in Hamiltonian for any molecule

1 vote
Accepted

What does it mean for a projection operator to represent a state?

1 vote
Accepted

Raising and lowering operators

1 vote
Accepted

Spin projection

1 vote

When does the wave function spread over the volume of a box?

1 vote

Particle in a box derivation question

1 vote

Berry curvature flux around a Weyl node

1 vote

Definition of simple harmonic motion (SHM) and instantaneous SHM

1 vote

Solving the Kohn-Sham equation

1 vote
Accepted

Time-dependent state probability harmonic oscillator

1 vote

1D quantum scattering from step potential - how to prove orthonormality of eigenstates?

0 votes
Accepted

Different energies for particle in a box from $0$ to $L$ and $-L/2$ to $L/2$