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user26143
  • Member for 9 years, 2 months
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17 votes

How to get the position operator in the momentum representation from knowing the momentum operator in the position representation?

7 votes
Accepted

Expectation of momentum in the bound state

7 votes
Accepted

QED: basic process which violates energy-momentum conservation

5 votes

When can we assume that the wavefunction is separable

5 votes

Chemical reaction as state transition?

5 votes
Accepted

Paradox in the Hellmann-Feynman Theorem

3 votes
Accepted

Fock state and Slater determinant

3 votes
Accepted

How to superpose an wavefunction for an infinite potential well / interval - $-d/2 <x<d/2$

2 votes
Accepted

A question of BRST symmetry of bosonic string theory

2 votes

Evaluation of expectation values

2 votes
Accepted

Soft Bremsstrahlung: why $\hat{k}\cdot\mathbf{v}= \mathbf{v}'\cdot\mathbf{v}$?

1 vote
Accepted

Causality in QFT from vanishing commutator and the EPR paradox

1 vote

Dissolving oxygen into water

1 vote

What is the current state of research into $v$-representability?

0 votes

Molecule vs Crystal

0 votes

Is $\langle\psi_1|p\psi_1\rangle$ necessarily 0 for eigenstates?

0 votes

Energy difference between symmetric and antisymmetric wavefunctions