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math-ph2022★ 2 cited
Towards modified bimetric theories within non-product spectral geometry
Arkadiusz Bochniak
We discuss class of doubled geometry models with diagonal metrics. Based on the analysis of known examples we formulate a hypothesis that supports treating them as modified bimetri…
hep-th2022★ 6 cited
Spectral interaction between universes
Arkadiusz Bochniak, Andrzej Sitarz
We derive a perturbative formula for the direct interaction between two four-dimensional geometries. Based on the spectral action principle we give an explicit potential up to the…