Antisymmetric Metric Field as Dark Matter
Abstract
We consider the generation and evolution of quantum fluctuations of a massive nonsymmetric gravitational field (B-field) from inflationary epoch to matter era in the simplest variant of the nonsymmetric theory of gravitation (NGT), which consists of a gauge kinetic term and a mass term. We observe that quite generically a nonsymmetric metric field with mass, mB ~ 0.03(HI/10(13) GeV)4 eV, is a good dark matter candidate, where HI denotes the inflationary scale. The most prominent feature of this dark matter is a peak in power at a comoving momentum, k ~ sqrt(mB H0)/(1+zeq)(1/4), where zeq is the redshift at equality. This scale corresponds roughly to the Earth-Sun distance.
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