Higher geometric structures on manifolds and the gauge theory of Deligne cohomology

S Bunk, CS Shahbazi - arXiv preprint arXiv:2304.06633, 2023 - arxiv.org
We study smooth higher symmetry groups and moduli $\infty $-stacks of generic higher
geometric structures on manifolds. Symmetries are automorphisms which cover non-trivial …

Gerbes in geometry, field theory, and quantisation

S Bunk - Complex Manifolds, 2021 - degruyter.com
This is a mostly self-contained survey article about bundle gerbes and some of their recent
applications in geometry, field theory, and quantisation. We cover the definition of bundle …

Smooth functorial field theories from B-fields and D-branes

S Bunk, K Waldorf - Journal of Homotopy and Related Structures, 2021 - Springer
In the Lagrangian approach to 2-dimensional sigma models, B-fields and D-branes
contribute topological terms to the action of worldsheets of both open and closed strings. We …

Lorentzian bordisms in algebraic quantum field theory

S Bunk, J MacManus, A Schenkel - Letters in Mathematical Physics, 2025 - Springer
It is shown that every algebraic quantum field theory has an underlying functorial field theory
which is defined on a suitable globally hyperbolic Lorentzian bordism pseudo-category. This …

-Bundles

S Bunk - arXiv preprint arXiv:2308.04196, 2023 - arxiv.org
Higher bundles are homotopy coherent generalisations of classical fibre bundles. They
appear in numerous contexts in geometry, topology and physics. In particular, higher …