Emmy Blumenthal's Miscellaneous Notes
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Miscellaneous notes
These are notes I have written primarily for my own understanding.
I'm posting them here in case they are useful to others.
If you find any errors or have criticisms, please let me know (at the email above) so that I'm not spreading false information!
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A tutorial on the cavity method and dynamical mean-field theory [arXiv link] (July 2025).
Here, I derive the DMFT for a simple linear model by directly analyzing the microscopic solution to the equations of motion and by using the cavity method.
This is a useful pedagogical exercise for understanding where each term comes from in a single-particle DMFT equation of motion.