Knowledge

The course commences with a comprehensive introduction of the profound framework of effective field theory. The tower of effective field theories for post-Newtonian gravity is then presented in detail. This presentation also covers the following concepts and methods: Kaluza-Klein reduction, tetrads, Cartan's method of exterior forms, multi-loop techniques; and basics of non-equilibrium QFT. The tetrad formalism and spinors in general relativity are presented. In conjunction with the Newman-Penrose formalism this is shown to map exact solutions in General Relativity using the double copy correspondence. In the 2nd part of the course topical research articles on various QFT applications in gravity are studied in an interactive manner, where specific topics vary from year to year.

Competences

The course expands background competence of students in both Quantum Field Theory and General Relativity, and also trains in generic research skills, including how to approach novel research litterature, oral and written presentation of research, and scientific discourse. The course provides the students with the background training for further studies within this research area, namely a master's project in gravity from a QFT perspective, and further provides necessary background for students who consider to continue to research in particle physics theory or phenomenology, quantum gravity, or string theory. The course provides the students familiarity with concepts, methods, and skills, which apply across diverse areas in modern physics. The course is also relevant for PhD students.

Skills

Following the course the students will:

• Solidify their background in Quantum Field Theory and Gravity, and their modern interface;

• Master the conceptual framework of effective field theory in a generic context;

• Establish their ability to carry out intricate high-precision computation in various contexts;

• Be poised to approach contemporary research in gravity and gravitational waves using methods from the realm of high energy physics;

• Build generic research skills, including approaching novel research literature, scientific presentation, writing, and exchange.