Master programs and postgraduate courses in physics are paths of specialization dedicated to graduates with bachelor's or master's degree in science, mainly in physics and mathematics. Educational programs may include studies on particle physics, structure of matter, thermodynamics, acoustics, optics, electronics, materials science and more, depending on the type of course chosen by the students. Boys and girls fans of these materials can then decide to follow a doctorate to become physicists or researchers: in this case there are several options, from theoretical physics to quantum or nuclear physics.