<p>What you can do is EE plus a minor in CS and physics. There are some key classes you want to take from each. Things that could be applicable to quantum information (I mean things that will help you build the foundations for your understanding of these quantum systems) like algorithms, even though they’re classic algorithms they’ll provide you somewhere to start. You want theoretical topics. Solid state physics, quantum mechanics, and theory of electromagnetism classes would be what you’d want out of physics.</p>