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gr-qc2025
Gravitational collapse of Matter in the presence of Scalar field Dark energy
Priyanka Saha, Dipanjan Dey, Kaushik Bhattacharya
This study examines the gravitational collapse of an overdense dark matter region in a coupled scalar field dark energy scenario within a flat FLRW background. It finds that, depen…
gr-qc2025★ 1 cited
Cosmological effect of coherent oscillation of ultralight scalar fields in a multicomponent universe
Priyanka Saha, Dipanjan Dey, Kaushik Bhattacharya
The idea that coherent oscillations of a scalar field, oscillating over a time period that is much shorter than the cosmological timescale, can exhibit cold dark matter (CDM) like…