Hello,

A major in physics with a focus on theoretical computer science will enable one to build algorithms for a quantum computer. If you are interested in Quantum Mechanics, then the creation of a base in quantum computing includes a major in computer science and a minor in mathematics with an emphasis on abstract linear algebra. After cse, The benefits of taking CS as a major were included. And if you do a Ph.D in Quantum Computing, you can still get corporate employment as a junior researcher/senior engineer etc. in traditional fields of computer science. Other wise people these days just govt. The department of research facilities and universities will be your place of work.