Fakultät für Physik und Astronomie
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On Globalization of Perturbative Partition Functions in the Batalin-Vilkovisky formalism

Konstantin Wernli , Center for Quantum Mathematics (SDU)

In the Batalin-Vilkovisky (BV) formalism, one can define a perturbative (i.e. given by Feynman graphs and rules) partition function $Z(x_0)$ for any choice of classical background (solution to Euler-Lagrange (EL) equations) $x_0$. In some examples one can extract from $Z$ a volume form on the smooth part of the moduli space of solutions to EL equations, and compare its integral with non-perturbative approaches to quantization. I will review this construction, some results from examples in the literature and ongoing joint work with P. Mnev about the behaviour at singular points $x_0$.

Physikalische Mathematik (RHIND)
30 Jan 2023, 16:00
Institut für Theoretische Physik, online, at zoom

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