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Results tagged with quantum-interpretations
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user 47309
This tag is for questions relating to what, if anything, the quantum mechanical formalism and experimental results say about the way the world works.
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Is the "preferred basis problem" about why things entangle in specific ways?
I know there are various definitions of the "preferred basis problem." I'm trying to understand what Wikipedia is saying here.
... a quantum state can equally well be described (e.g.) as having a wel …
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Why doesn't Many-Worlds interpretation talk about many worlds?
What it means is straightforward: if there's a particle and experimenter in $$(|up\rangle + |down\rangle) \otimes experimenter_?$$ And the experimenter sees it and becomes entangled with it: $$|up\ran …
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Question about Wigner's friend
Suppose you have an entangled pair $c_0|0\rangle|0\rangle + c_1|1\rangle|1\rangle$. A local unitary operation $U$ on the left qubit would change this to $c_0U|0\rangle|0\rangle + c_1U|1\rangle|1\rangl …
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Connection between quantum physics and consciousness
The above answers are correct, in that arbitrary physical apparatuses will effectively measure the system under consideration via entanglement (which becomes decoherence in cases of uncontrolled entan …
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