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Probing tachyon kinks in Newton-Cartan background
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abstract
In this paper, we perform a systematic analysis of tachyon condensation over string Newton-Cartan (NC) geometry by probing the background with non BPS $ Dp $ brane. We construct the \textit{finite} tachyon effective action for NC geometry and explore the dynamics associated with the tachyon kink on the world-volume of the non BPS $ Dp $ brane. We show that under certain specific assumptions, the spatial dependent tachyon condensation leads to an emerging BPS $ D(p-1) $ brane dynamics over NC background. We further compute the strees energy tensor and show the equivalence between two different $ Dp $ brane configurations in the NC limit.
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p-brane Newton--Cartan Geometry
A p-brane Newton-Cartan structure admits a torsion-free compatible affine connection exactly when it is Augustinian, and all such connections are classified by longitudinal-frame field strengths.
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