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wondering
  • Member for 9 years, 7 months
  • Last seen more than a month ago
  • Prague, Czechia
11 votes
1 answer
823 views

Is the Hilbert space spanned by both bound and continuous hydrogen atom eigenfunctions?

9 votes
3 answers
865 views

Bounded operator - definition?

6 votes
3 answers
556 views

How to connect these two formulations regarding the need for a density matrix in quantum mechanics?

5 votes
1 answer
671 views

Separability of the Hilbert space: countable orthonormal basis vs. continuous spectrum

4 votes
1 answer
4k views

Non-degenerate or degenerate perturbation theory for a non-degenerate level of a system with other levels degenerate?

4 votes
2 answers
2k views

What exactly implies the need of quantum mechanics for self-adjoint and not only symmetric operators? [duplicate]

2 votes
2 answers
760 views

Notions of "confined" and "metastable" states?

1 vote
3 answers
217 views

How does independence of two systems follow from the fact that they are both completely described?

1 vote
2 answers
1k views

Momentum space representation of the hydrogen atom Schroedinger equation

1 vote
1 answer
66 views

Why maximum probability (with bullets) at x=0 in double-slit experiment (Feynman's textbook)?

1 vote
0 answers
24 views

Creating vacuum in a rubber hose by replacing air with helium which escapes through osmosis?

0 votes
1 answer
628 views

Is there a correlation between aging and the increase of organisms entropy?