Winding Number | Contour Integrals in Physics (Part 1) | Topological Physics, SSH Model

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There are faster ways of evaluating / visualising the winding number but I took this detour to illustrate contour integration! Stay tuned for part 2: the retarded propagator in electrodynamics
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Thanks a lot! I wanted to see this mathematical way (instead of that vector circling or not circling the origin) of how the winding number is zero or non-zero. Kudos!

vaibhavsharma
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Thanks a lot. It helps me figure out the problem of this integration confusing me recently.

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Thanku Sir .
Your video is just simple for complex topic.
Thanks for simplicity

md.zafaralam
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what is name of this book used in this vidio?

juonz-pubgmobile
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Tch goes through complex analysis but still has the same cover photo as back in 2015

DrQuasi