**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 2023: Topological symmetries in quantum field theory
- Winter term 2022/2023:
Vertex operator algebras and topological field theories from twisted QFTs in 3d and 4d
- Summer term 2022:
Cluster algebras II: Applications in integrable models, geometry and SUSY QFT
- Winter term 2021/2022:
Cluster algebras
- Summer term 2021:
Stabiltiy conditions
- Winter term 2020/2021: Supersymmetry, geometric structures and twistor space methods
- Summer term 2020: Topological phases of matter, matrix product states, and tensor categories
- Winter term 2019/2020: JT gravity and Mirzakhani's recursion
- Summer term 2019: Integrable PDEs, Riemann-Hilbert correspondence and free fermion
conformal field theory
- Winter term 2018/2019: Disc (E_k) algebras in TQFT and SUSY QFT
- Summer term 2018: Flat connections and geometric quantisation
- Winter term 2017/2018:
Slightly more advanced topics in conformal
field theory
- Summer term 2017:
Hitchin Systems, Non-Abelian Hodge Theory and Wall Crossing
- Winter term 2016/2017:
Conformal field theory
- 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