A Canonical Complex Structure and the Bosonic Signature Operator for Scalar Fields in Globally Hyperbolic Spacetimes

URN to cite this document:: urn:nbn:de:bvb:355-epub-529962
DOI to cite this document:: 10.5283/epub.52996

Finster, Felix

; Much, Albert

License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 05 Oct 2022 04:58

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Abstract

The bosonic signature operator is defined for Klein–Gordon fields and massless scalar fields on globally hyperbolic Lorentzian manifolds of infinite lifetime. The construction is based on an analysis of families of solutions of the Klein–Gordon equation with a varying mass parameter. It makes use of the so-called bosonic mass oscillation property which states that integrating over the mass ...