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Possible Quantum Gravity Effects in a Charged Bose Condensate Under Variable E.M. Field

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Scientific Paper
TitlePossible Quantum Gravity Effects in a Charged Bose Condensate Under Variable E.M. Field
Read in fullLink to paper (Internet Archive)
Author(s)Giovanni Modanese
KeywordsQuantum Gravity, Bose-Einstein Condensate
JournalArXiv
No. of pages26

Read the full paper here (archived copy — the original link is no longer available)

Abstract

In the weak field approximation to quantum gravity, a "local" positive cosmological term ?2 corresponds to a local negative squared mass term in the Lagrangian and may thus induce instability and local pinning of the gravitational field. Such a term can be produced by the coupling to an external Bose condensate. In the functional integral, the local pinning acts as a constraint on the field configurations. We discuss this model in detail and apply it to a phenomenological analysis of recent experimental results.