\documentclass[12pt,border=3pt,tikz,class=scrartcl,multi=false]{standalone} \usepackage[T1]{fontenc} \usepackage[latin1]{inputenc} \usepackage{times} \usepackage{pgfplots} \pgfplotsset{compat=1.10} \usetikzlibrary{positioning,calc,arrows.meta} \pagestyle{empty} \begin{document} \begin{tikzpicture}[>=latex',x=1cm,y=1cm] \begin{scope}[xshift=.5cm] 	\draw [thick]  		(-3,0) -- ++(.25,0)	(-2,-.75) -- ++(.25,0)	(-2,1) -- ++(.25,0)	(-1,0) -- ++(.25,0) 	; 	\draw [semithick,dash pattern=on 2pt off 2pt] 		(-2,-.75) -- (-2.75,0) -- (-2,1) 		(-1.75,-.75) -- (-1,0) -- (-1.75,1) 	; 	\draw [->,red,semithick] (-2.875,-.25) -- ++(0,.5); 	\draw [->,red,semithick,xshift=-1.5pt] (-1.875,-1) -- ++(0,.5); 	\draw [<-,red,semithick,xshift=1.5pt] (-1.875,-1) -- ++(0,.5); 	\draw [->,red,semithick] (-.875,-.25) -- ++(0,.5); \end{scope} 	\draw [][scale=3,width=2,length=2]},thick&#x5D;  		(0,-1.1) -- ++(0,2.2) 		node [pos=0,anchor=north,text centered] {\scriptsize energy} 	; \begin{scope}[xshift=-.75cm] 	\draw [thick]  		(3,-.5) -- ++(.25,0)	(2,-1) -- ++(.25,0)	(2,.5) -- ++(.25,0)	(1,0) -- ++(.25,0) 	; 	\draw [semithick,dash pattern=on 2pt off 2pt] 		(2.25,-1) -- (3,-.5) -- (2.25,.5) 		(2,-1) -- (1.25,0) -- (2,.5) 	; 	\draw [->,red,semithick] (1.125,-.25) -- ++(0,.5); 	\draw [->,red,semithick,xshift=-1.5pt] (2.125,-1.25) -- ++(0,.5); 	\draw [<-,red,semithick,xshift=1.5pt] (2.125,-1.25) -- ++(0,.5); 	\draw [->,red,semithick] (3.125,-.75) -- ++(0,.5); \end{scope} \end{tikzpicture} \end{document}