- Scherk-Schwarz mechanism
In
theoretical physics , the Scherk-Schwarz mechanism for a field φ basically means that φ is a section of a non-trivializablefiber bundle (not necessarily avector bundle since φ needn't be linear) which is fixed by the model. This is called a "twist" by physicists.Note that this can never occur in a
spacetime which ishomeomorphic to Rn, which is acontractible space . However, forKaluza-Klein theories, the Scherk-Schwarz mechanism is a possibility which can't be neglected.
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