Theoretical Physics BSc

3 Years On Campus Bachelors Program

University of Sussex

Program Overview

Sussex’s BSc Theoretical Physics is built for students who want to dive deep into the mathematical foundations of the universe — from quantum fields to cosmology. It suits those who love abstract thinking, problem-solving, and using mathematics to explore the laws of nature.

Curriculum Structure

Year 1:
You’ll start with Mathematics for Physics 1, Classical Mechanics, and Electricity and Magnetism, building a strong foundation in core physics principles. Modules like Contemporary Physics and Scientific Programming introduce cutting-edge topics and Python coding, while Mathematics for Physics 2 strengthens your analytical toolkit.

Year 2:
This year focuses on quantum theory, statistical mechanics, and mathematical methods. You’ll study Quantum Physics, Thermal Physics, and Mathematics for Physics 3, alongside Experimental Physics and Scientific Computing. These modules blend theory with practical coding and lab work, preparing you for advanced theoretical modelling.

Year 3:
You’ll explore advanced topics like Quantum Field Theory, General Relativity, and Condensed Matter Physics. The Research Project lets you investigate a theoretical problem under expert supervision, while Computational Physics and Electromagnetic Waves help you apply mathematical models to real-world systems.

Focus areas

Quantum field theory, general relativity, computational physics, mathematical modelling, cosmology

Learning outcomes

Develop and apply mathematical models to physical systems, use computational tools for simulation, conduct independent theoretical research

Professional alignment (accreditation)

Accredited by the Institute of Physics (IOP) — meets academic requirements for professional physicist status

Reputation (employability rankings)

Ranked 20th in the UK for Physics (QS World University Rankings by Subject 2025) and 7th in the UK for research environment in Physics (REF 2021, Times Higher Education)

Experiential Learning (Research, Projects, Internships etc.)

At Sussex, BSc Theoretical Physics students don’t just study equations — they apply them to real-world problems using advanced computational tools, coding languages, and research-led projects. From your first year, you’ll gain practical experience in scientific programming, mathematical modelling, and collaborative problem-solving, all supported by expert faculty and cutting-edge facilities.

Here’s how experiential learning is built into the program:

Scientific Programming (Year 1): Learn Python to model physical systems and solve problems computationally
Experimental Physics (Year 2): Gain hands-on lab experience with data acquisition, analysis, and instrumentation
Computational Physics (Year 3): Apply numerical methods to simulate complex systems and explore theoretical models
Final-Year Research Project: Work one-on-one with a faculty supervisor on a theoretical topic — from quantum field theory to cosmology
Access to the Pevensey Laboratories: Home to advanced facilities for quantum, atomic, and particle physics research
Sussex Centre for Quantum Technologies: Offers opportunities to engage with cutting-edge research and interdisciplinary collaboration
Sussex Research Hive and Library: 24/7 access to scientific journals, datasets, and collaborative study spaces

Progression & Future Opportunities

Sussex Theoretical Physics graduates are known for their mathematical fluency, analytical depth, and ability to model complex systems — making them highly sought after in both academia and industry.

This degree prepares you for careers in quantitative finance, software development, aerospace research, and data science. Employers value the rigorous training in mathematical modelling, Python programming, and independent research that’s built into the curriculum.

Here’s how Sussex supports your future success:

Careers and Entrepreneurship Team: Offers one-to-one career coaching, employer networking events, and access to Sussex Connect — a global alumni mentoring platform
Graduate Outcomes: 91% of Sussex graduates are in work or further study within 15 months (HESA 2023)
Industry Partnerships: Sussex Physics collaborates with UKRI, STFC, and the Centre for Quantum Technologies, supporting student research and internships
Long-Term Accreditation Value: Accredited by the Institute of Physics (IOP) — meets academic requirements for professional physicist status
Final-Year Research Project: Often linked to active research groups in quantum field theory, cosmology, or computational physics

Further Academic Progression:
Graduates can continue with Sussex’s MSc in Physics, MSc in Quantum Technologies, or pursue doctoral research in theoretical physics, mathematical modelling, or computational science. The BSc also provides a strong foundation for interdisciplinary postgraduate study in data science, engineering, or scientific computing.