**Seminar Quantum Physics and Geometry**

The seminar takes place biweekly on Thursdays at 2pm before the colloquium. The location alternates between the DESY and the Geomatikum. In the context of the seminar, we have included a series of 'What is...?'-talks.

**Seminar**

- Summer term 2016: Defining Quantum Field Theories
- Winter term 2015/2016:
Global observables in abelian gauge field theories
- Summer term 2015: Chern-Simons theory, three-manifold invariants and topological strings
- Winter term 2014/2015: Non-compact groups, quantum groups, and some applications in TFT and CFT
- Summer term 2014: The Hitchin integrable systems
- Winter term 2013/2014: Quantum groups and integrability
- Summer term 2013: Topological Quantum Field Theory and Four- Manifolds
- Winter term 2012/13: Hilbert Schemes of Points on Surfaces
- Summer term 2012: Equivariant Cohomology and Instanton Counting
- Winter term 2011/12:
Categories, D-Branes, and Stability
- Summer term 2011: Fukaya category and related subjects
- Winter term 2010/11:
Topological conformal field theory
- Summer term 2010: Deformation Theory
- Summer term 2009: F-theory
- Winter term 2008/09:
Renormalization Hopf algebras and combinatorial groups
- Summer term 2008: Holonomy groups
- Winter term 2007/08: The Batalin-Vilkovisky formalism
- Summer term 2007: Differential geometry of supermanifolds
- Winter term 2006/07: The geometric Langlands conjecture
- Summer term 2006: Special Geometry and Hitchin functionals
- Winter term 2005/06: Tensor Categories in Mathematical Physics
- Summer term 2005: The Casimir effect; generalized geometry
- Winter term 2004/05: Rozansky-Witten invariants and derived categories; T-duality with fluxes and non-commutative tori
- Summer term 2004: Spin structures and Morita equivalence; Twisted K-Theory
- Winter term 2003/04: Special geometry; nearly Kähler manifolds and their applications in supergravity; Introduction to non-commutative geometry and deformation quantization
- Summer term 2003: Quantum mechanics and quantum field theory at finite temperature; Gerbes