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Variable Chaplygin gas cosmologies in f(R, T) gravity with particle creation

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arxiv 1904.10303 v1 pith:SY56OPBK submitted 2019-04-22 gr-qc hep-th

Variable Chaplygin gas cosmologies in f(R, T) gravity with particle creation

classification gr-qc hep-th
keywords beenparticlecreationstudieduniversechaplyginconsideredcosmological
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A flat FLRW cosmological model with perfect fluid comprising of variable Chaplygin gas has been studied in context of f(R; T) gravity with particle creation. The considered scale factors describe the accelerated expansion of universe due to the effective negative pressure produced during evolution of universe. The role of particle creation pressure on the cosmological parameters have been discussed in detail. By considering well accepted values of free parameters, the late time expansion of the universe with energy conditions have also been studied. The state-finder diagnostic for the considered cases have been studied and the evolution of source function with time have suggested almost constant particle production at late times.

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