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Timeline for Understanding the Bloch sphere

Current License: CC BY-SA 3.0

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Nov 8, 2020 at 1:06 comment added skan Why do we need a 3D sphere and not just a circle on a plane? If we imagine the qubit as the 2 possible values of the spin of an atom or its superposition... What's the physical meaning of the azimutal angle ϕ?
Sep 4, 2015 at 16:06 history edited Timaeus CC BY-SA 3.0
added 77 characters in body; added 250 characters in body
Sep 4, 2015 at 15:56 history edited Timaeus CC BY-SA 3.0
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Sep 4, 2015 at 13:18 history edited Ellie CC BY-SA 3.0
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Sep 4, 2015 at 5:11 history answered Timaeus CC BY-SA 3.0