deletions | additions       diff --git a/untitled.tex b/untitled.tex  index ebd2993..25d7307 100644  --- a/untitled.tex  +++ b/untitled.tex 
...
\section{intro}  Graphene has garnered a lot of interest for its unique electronic properties and its potential applications. Graphene is \\  There are two absorption properties that are involved in light-graphene interaction,interband and intraband absorption described by a complex conductivity $ \sigma=\sigma_{intra}(\omega,\mu_c,\Gamma,T)+\sigma_{inter}(\omega,\mu_c,\Gamma,T)$ \sigma_g=\sigma_{intra}(\omega,\mu_c,\Gamma,T)+\sigma_{inter}(\omega,\mu_c,\Gamma,T)$