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user13514
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6 votes
2 answers
3k views

When and why do we need wave packets in quantum mechanics?

6 votes
2 answers
2k views

Relation between perturbation theory and Taylor expansion in QM

5 votes
1 answer
265 views

Validity of finite difference method

4 votes
1 answer
1k views

Effective mass tensor

4 votes
1 answer
312 views

Solving the Schrödinger equation numerically on a non-uniform grid

3 votes
3 answers
2k views

Field inside a plate capacitor with a dielectric material

3 votes
2 answers
235 views

Eigenstates in hexagonal well

3 votes
1 answer
323 views

Momentum operator in effective mass approximation

2 votes
1 answer
320 views

Physical meaning of $L_z$ perturbation of rigid rotator

2 votes
0 answers
449 views

Solving Poisson's equation for an infinite grounded plane

2 votes
3 answers
274 views

Finite difference method: The correct formula

2 votes
1 answer
194 views

The band gap in many-body theory

1 vote
1 answer
66 views

Schrödinger equation with spatially dependent mass

1 vote
0 answers
122 views

Avoided Crossing in QM [duplicate]

1 vote
2 answers
358 views

Boundary condition for Schrödinger equation at metal-semiconductor interface

1 vote
0 answers
214 views

How to derive effective mass Hamiltonian for a parabolic band

1 vote
2 answers
801 views

Solving Schrödinger equation numerically with boundary condition

1 vote
0 answers
35 views

Connection between $k \cdot p$ equation and Schrödinger equation

1 vote
3 answers
245 views

Time-dependence in QM

1 vote
0 answers
103 views

Potential of a depletion layer/space charge layer

0 votes
0 answers
64 views

Occupied k values in band structure

0 votes
1 answer
81 views

Electrostatic Potential

0 votes
1 answer
38 views

Electron density for discrete set of states

0 votes
1 answer
270 views

Eigenstates of angular momentum with circular symmetry