All Questions
3
questions
1
vote
1
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207
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Will the Hilbert space get expanded when measuring the entangled state?
If I have two electrons that are indistinguishable, as I understand, they are entangled. And the Hilbert space that describes the behavior of this pair of electrons is a subspace of the Tensor product ...
- 47
2
votes
0
answers
68
views
Wave function collapse for experimental quantum state preparation
Has the John von Neumann projection, or the wave function collapse, been used in the experimental preparation of quantum states? As an illustration, for a pair of EPR-type entangled 2-level atoms
$$|\...
- 346
1
vote
1
answer
205
views
Annihilation Operator on Entangled State - How Does This Not Break No-Communication Theorem?
If I have the state
$$|\psi\rangle=\frac{1}{\sqrt{2}}\left(|2\rangle_{A}|0\rangle_{B}+|0\rangle_{A}|2\rangle_{B}\right)$$
and apply the annihilation operator to B
$$a_{B}|\psi\rangle=|\phi\rangle=\...
- 379