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pll04
  • Member for 2 years, 8 months
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4 votes
1 answer
662 views

Why does the Dyson series have a 1/n! factor?

2 votes
1 answer
679 views

Derivation of longitudinal wave in a solid rod

2 votes
2 answers
625 views

Proof of principle of stationary action when the Lagrangian is not $L=T-V$

2 votes
2 answers
465 views

Difference between stable manifold and basin of attraction?

2 votes
1 answer
172 views

Why do the wavefunction wavenumbers for a box and for a periodic potential differ?

1 vote
1 answer
104 views

Proof that Bjorken-$x$ is positive

1 vote
0 answers
50 views

Why is the canonical momentum operator for a charged particle not observable in an E&M background?

1 vote
1 answer
418 views

Time evolution of operators in the Heisenberg picture

1 vote
1 answer
105 views

Energy increase due to the Zeeman effect

1 vote
3 answers
456 views

Difference between upper and lower indices in Einstein notation

0 votes
0 answers
25 views

Do operators commute if they depend on the same operator? [duplicate]

0 votes
1 answer
135 views

Statistical proof of the principle of least action

0 votes
1 answer
468 views

Proof of the generalised uncertainty principle

0 votes
2 answers
49 views

Exponential expression of controlled unitary gate

0 votes
1 answer
133 views

Connection between Laplace's equation and hydrogenic electron Schrodinger equation

0 votes
0 answers
50 views

Measure-preserving vs. non-dissipative vs. Hamiltonian systems

0 votes
2 answers
734 views

Are non-degenerate eigenfunctions orthogonal? [duplicate]

0 votes
2 answers
88 views

Symmetry of the second partial derivatives of the Hamiltonian

-2 votes
1 answer
52 views

Relation of two commuting operators to other operators