The specialty of Nuclear and Particle Physics (NPP) comprises disciplines related to studies of matter at the subatomic level, and to application of physical methods developed in other areas of physics and engineering.

The program of study is especially geared toward providing the students with specific expertise allowing for immediate employment in the corporate research world or in government laboratories, or for further graduate study. Students obtain a solid physics background plus significant experience in computational science, physics of elementary particles, fundamental and applied nuclear physics, dosimetry of ionizing radiation, radioecology, accelerators and their applications. The training methods are based on modern information technologies that rely on the well-developed Internet network of the Sofia University. Workload allows students to perform scientific research in one of the research groups at the Department of Atomic Physics from the beginning of their training.