I was wondering just what physical properties of an electron influence it's probability of being detected in a certain spin state?(adsbygoogle = window.adsbygoogle || []).push({});

For example, if I prepare an electron in the spin up state along say the way y axis (vertical axis) and pass it through a detector that is at 0 degrees, then using the formula Cos2θ/2, I know there is 100% probability of detecting spin up. If I rotate my detection device to say 90 degrees then I know there is 50% chance of my equipment detecting spin up and if I rotate my device to say 60 degrees then I know there is a 75% chance of detecting a spin up.

But what is it exactly (if known) about the electron that leads to these probabilities? Why does an angle of 60 degrees lead to a 75% probability of detection?

By the way I have no background in physics at all, sorry. I'm just a very interested layman and my math isn't great either!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# B A question about Electron spin

Have something to add?

Draft saved
Draft deleted

Loading...

Similar Threads for question Electron spin |
---|

I Two particles Dirac type equation question |

I Dirac equation, one question |

I Braket notation question |

B Quick question about Bloch's sphere |

B A couple of questions about photons and superposition. . . |

**Physics Forums | Science Articles, Homework Help, Discussion**