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AlfredV
  • Member for 5 years, 7 months
  • Last seen more than a month ago
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question
13
Why symmetry transformations have to commute with Hamiltonian?
May 3, 2019
question
5
Definition of Newton's first law [duplicate]
May 12, 2019
question
5
Why is Gell-Mann and Low theorem valid only for non-degenerate non-perturbed states?
Jul 9, 2020
question
4
The validity of the Gell-Mann and Low theorem for non-normalizable state $\phi_{0}$?
Apr 11, 2020
question
3
A book on special special relativity covering covariant and contravariant tensors [duplicate]
May 10, 2019
question
2
Does the set of the degenerated eigenfunctions of hamiltonian forms a subspace?
May 5, 2019
question
2
How to determine if a tensor is covariant or contravariant?
May 24, 2019
question
2
Lehmann representation of Green function
Nov 1, 2019
question
1
The differentiation of a functional by a ket
May 5, 2019
question
1
Integral convergence in scattering problem
May 6, 2019
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7
Point group of harmonic oscillator
6
Physical interpretation of transition density matrix
5
Atomic terms and perturbation theory