User ProfM

2 votes

Imaginary and real parts of a ground state wave function

answered Jun 25, 2021 at 12:29

1 vote

Accepted

Raising and lowering operators

answered Nov 29, 2020 at 9:08

0 votes

Accepted

For quantum particle with quantum number $𝑛$ in an infinite square well are these statement correct

answered Nov 7, 2020 at 16:32

3 votes

Solving expectation value of product of position and momentum

answered Nov 4, 2020 at 22:00

1 vote

Accepted

Spin projection

answered Nov 4, 2020 at 7:52

5 votes

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

answered Nov 2, 2020 at 17:55

1 vote

Accepted

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

answered Nov 2, 2020 at 8:31

2 votes

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

answered Nov 1, 2020 at 14:23

1 vote

Accepted

Weyl point? Weyl node?

answered Jul 8, 2020 at 10:01

1 vote

Primitive Translations in Diamond Lattice

answered Jul 7, 2020 at 20:01

2 votes

Measuring the phonon dispersion at edge of Brillouin Zone?

answered Jul 7, 2020 at 19:36

0 votes

Accepted

Fourier transform and momentum space

answered Jul 5, 2020 at 10:02

2 votes

Accepted

Hydrogen atom at $T=0K$

answered Jul 5, 2020 at 7:37

1 vote

Accepted

Degree of kinetic energy component in Hamiltonian for any molecule

answered Jun 30, 2020 at 6:54

2 votes

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

answered Jun 20, 2020 at 11:14

6 votes

Justification of the energy and momentum operators in quantum mechanics

answered Jun 18, 2020 at 19:38

2 votes

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

answered Jun 18, 2020 at 14:45

3 votes

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

answered Jun 17, 2020 at 7:44

1 vote

Accepted

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

answered Jun 15, 2020 at 6:51

0 votes

Different definitions of the uncertainty principle

answered Jun 14, 2020 at 6:27

1 vote

Particle in a box derivation question

answered Jun 13, 2020 at 6:22

1 vote

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

answered Jun 11, 2020 at 9:51

2 votes

Initial guess for electron density in density functional theory

answered Jun 9, 2020 at 20:26

2 votes

Expansion Postulate Quantum Mechanics

answered Jun 9, 2020 at 13:03

1 vote

Solving the Kohn-Sham equation

answered Jun 9, 2020 at 7:18

1 vote

Definition of simple harmonic motion (SHM) and instantaneous SHM

answered Jun 7, 2020 at 14:27

1 vote

Berry curvature flux around a Weyl node

answered Jun 6, 2020 at 16:23

0 votes

Accepted

Scattering vs bound states solution

answered Jun 6, 2020 at 14:31

0 votes

Accepted

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

answered Jun 6, 2020 at 7:55

1 vote

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

answered Jun 6, 2020 at 7:22

Stack Exchange Network

35 Answers

Imaginary and real parts of a ground state wave function

Raising and lowering operators

For quantum particle with quantum number $𝑛$ in an infinite square well are these statement correct

Solving expectation value of product of position and momentum

Spin projection

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

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

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

Weyl point? Weyl node?

Primitive Translations in Diamond Lattice

Measuring the phonon dispersion at edge of Brillouin Zone?

Fourier transform and momentum space

Hydrogen atom at $T=0K$

Degree of kinetic energy component in Hamiltonian for any molecule

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

Justification of the energy and momentum operators in quantum mechanics

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

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

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

Different definitions of the uncertainty principle

Particle in a box derivation question

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

Initial guess for electron density in density functional theory

Expansion Postulate Quantum Mechanics

Solving the Kohn-Sham equation

Definition of simple harmonic motion (SHM) and instantaneous SHM

Berry curvature flux around a Weyl node

Scattering vs bound states solution

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

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