File:Stern-Gerlach Analyzer Sequential Series E3.png
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editDescriptionStern-Gerlach Analyzer Sequential Series E3.png |
English: Neutrons are fired from a source oven into a non-homogeneous magnetic field (S-G analyzer). Due to their 'spin' they are deflected either up or down, labelled as z+ or z-.
Only the z+ neutrons are passed to the next S-G analyzer, which this time measures the neutron's x-spin. The neutrons are deflected either right or left, called x+ and x-, and the number of neutrons with x+ and x- spin is split even. At this point it seems we have measured both the z and x spin of the neutrons. However, this is not the case. When we pass only the x+ neutrons to the next S-G analyzer to confirm that they are all z+, we observe that their initial z-spin has been 'reset', and they are again split evenly between z+ and z-. This is despite the fact that we selected only the z+ neutrons in the first S-G analyzer. This experiment is thought to demonstrate the uncertainty principle, that only 1 axis of a neutron's spin can be known at a time. When the second one is measured, it 'resets' the state of the first one. The reason for this is still not known for certain. |
Date | |
Source | Own work |
Author | MJasK |
Modeled in FreeCAD
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current | 20:02, 25 November 2020 | 2,400 × 1,270 (176 KB) | MJasK (talk | contribs) | Uploaded own work with UploadWizard |
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File change date and time | 19:09, 25 November 2020 |