I am trying to draw the following diagram using qcircuit package but failed to do so. Guide me how draw this diagram.

enter image description here

  • 2
    Welcome to TeX.SE! When you are saying that you are trying: what did you try specifically and where did you get stuck? Please provide us with your attempt in form of a minimal working example, i.e. a minimal document that starts with \documentclass and ends with \end{document}. – user121799 Sep 9 '18 at 23:13
  • 1
    Circuitikz (now) has some built in quantum components. See also tex.stackexchange.com/questions/199683/… – John Kormylo Sep 10 '18 at 3:41

I think the package has not yet implemented how to color the gates, at least nothing is mentioned in the manual;Just to learn and fun,an option in qcircuit code embedded in a tikz node , to add the color padding to the gate. Of course you can draw independently using tikz commands, with more colorful results.

RESULT: enter image description here



    \fill[black!20](0,0)++(-21pt,-24pt) rectangle ++(25.8pt,45.5pt);
    \node at (0,0) {
        \Qcircuit @C=2em @R=2.5em {
            \lstick{\ket{0}} &\qw & \multigate{1}{\enspace \textrm P \enspace} & \gate{U_2} & \qw\\
            \hspace{-10pt}\ket{0}^{\otimes n}&{/\!/}\qw &\ghost{\enspace  \textrm P \enspace} & \ctrl{-1} & \qw \\

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.