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Scalar Quantum Fields: Theory Space and its Geometry
Viola Gattus, Peter Millington·June 10, 2026
hep-thMathematical PhysicsQuantum Physics
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Abstract
Scalar fields provide perhaps the simplest playground in which to develop our understanding of quantum field theory. In this lecture, we consider what it means to write down a scalar quantum field theory and how we can give geometrical interpretations to the space of such theories: the theory space.