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gr-qc2024★ 6 cited
Generating exact polytropes in non-conservative unimodular geometries
Sudan Hansraj, Chevarra Hansraj, Njabulo Mkhize +2
The trace-free Einstein equations contain one equation less than the complete field equations. In a static and spherically symmetric spacetime, the number of field equations is thu…
gr-qc2024
Is dark energy necessary for the sustainability of traversable wormholes?
Ayan Banerjee, Sudan Hansraj, Anirudh Pradhan +1
In the standard approach to studying wormhole geometry, the presence of dark energy is unavoidable to ensure traversability. The dark energy provides the negative gravity effect to…