The Geometry of Picture Changing Operators
Abstract
This note aims at clarifying some mathematical aspects of what is known in Physics as Picture Changing Operator (PCO). In particular, we want to show that PCOs are chain maps between the complex of differential forms (or superforms) and the complex of integral forms on a given supermanifold. We comment on the construction of (super)symmetric PCOs in terms of chain homotopies and we provide some physically relevant examples of applications.
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