In the American TV series "The Big Bang Theory": The protagonist all four of them work at Caltech. I don't understand whether they are students or teachers, and why there is an office.
They are not teachers, but physicists. As the top 20 universities in the world, California Institute of Technology is a leader in the field of science and technology. Worldwide, except for a few independent physical experiments, outdoor scientific research projects are completed by teachers and students in universities or scientists who use experiments in universities. Sheldon, they are all scientists. Jews are processing graduates who work in the laboratory of California Institute of Technology. In addition, teachers above associate professor and qualified scientists have independent offices.