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Replace this text with your caption  diff --git a/figures/TI edge state/size.tex b/figures/TI edge state/size.tex  new file mode 100644  index 0000000..2fcf78b  --- /dev/null  +++ b/figures/TI edge state/size.tex 
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begin_equation_sigma__xy_v__.tex  Now_we_look_at_the__.tex  figures/Interface between QHE/Interface between QHE.png  For_TI_it_does_not__.tex figures/TI edge state/TI edge state.png