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3
questions
4
votes
1
answer
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Relationships between elements in the density matrix
Say we have a density matrix for a spin-1 system given by:
$$
\hat \rho = \left[\begin{array} A \hat \rho_{00}& \hat \rho_{01} & \hat \rho_{02} \\
\hat \rho_{10} & \hat \rho_{11} & \...
- 93
-3
votes
1
answer
106
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Never ending quantum superposition? [closed]
So I am wondering over the Copenhagen Interpretation how can a decoherence or measurement ever happen. If in the beginning of the universe everything was in a state of coherence being in ...
8
votes
2
answers
516
views
Conservation of quantum coherence?
Is coherence conserved under unitary transformation?
As we saw in the process of generating entanglement, coherence between states of the subsystem is transferred to quantum correlations (related to ...
- 151