Tachyon as a Dark Energy Source

S.K.Srivastava

Tachyon as a Dark Energy Source

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arxiv gr-qc/0409074 v4 pith:TNJAL2FG submitted 2004-09-20 gr-qc astro-phhep-th

S.K.Srivastava This is my paper · ORCID

classification gr-qcastro-phhep-th

keywords darkenergycoincidencecoldcosmiccouplingcubiccurvature

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It is demonstrated that dark energy, driven by tachyons having non-minimal coupling with curvature and self-interacting inverse cubic potential, decays to cold dark matter in the late universe. It is found that this penomenon yields a solution to `` cosmic coincidence problem''.

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Dynamical analysis of cosmological models in non-minimal scalar non-metricity gravity
gr-qc 2025-08 reject novelty 3.0 of 10

A dynamical-system analysis of scalar non-metricity gravity claims a full cosmic history ending in future deceleration, but the interacting fixed points are artifacts of an invalid singularity removal.

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