Electron Paramagnetic Resonance (EPR) 2: Origins of the hyperfine splitting

In this video I discuss the magnetic origin of the hyperfine splitting (electron-nuclear interaction), and work out the energy levels of the simplest possible case, an electron interacting with a spin-1/2 nucleus.

[@SystemicCreative]

Really useful series, thank you 🙂

[@bobobobo6394]

Thanks a lot!

[@marwasaad8435]

Please, I would like to ask if you can share the slides/ Material of the course? Thank you in advance

[@niconeuman]

hi, sorry but I can't share the slides. they are part of classes I have given and will give again in the future.

[@marwasaad8435]

@@niconeuman thank you very much your students are very lucky and the course is amazing

[@BrentLeVasseur]

Can quantum mechanics explain cold electricity and cold plasma? It’s negative entropic and heals instead of shocks, and you can stick your finger into a spark gap and instead of kill you it will just freeze the tip of your finger. My guess is its electrons flowing backwards through time.

[@niconeuman]

@@BrentLeVasseur I'm sorry but that sounds like pseudoscience. I have never heard of cold electricity, but electricity at low currents and voltages is indeed used for healing purposes or for desensitisation of muscles in physical therapy. But the rest doesn't sound scientific. Entropy is a strictly positive quantity. Entropy changes can be negative for a system but the total entropy change in the system plus environment is always positive.

[@BrentLeVasseur]

@@niconeuman It’s not pseudoscience. It’s a real phenomena that can easily be reproduced in a lab or even at home using off the shelf wires and components. And it would seem that entropy is not strictly positive, because what seems to be happening is time reversal within a localized field around the electrons.

[@BrentLeVasseur]

@@niconeuman The phenomena was first discovered by Nikola Tesla with his radiant energy experiments. They employ an open circuit spark gap where a resonant coil is pulsed with high voltage DC current. You can google his hairpin circuit patent as an example. That circuit will produce cold electricity.