Inflation in energy-momentum squared gravity in light of Planck2018

Faraji, Marzieh; Rashidi, Narges; Nozari, Kourosh

doi:10.1140/epjp/s13360-022-02820-6

Eur. Phys. J. Plus

2022

DOI: 10.1140/epjp/s13360-022-02820-6

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Inflation in energy-momentum squared gravity in light of Planck2018

Marzieh Faraji

Narges Rashidi

Kourosh Nozari

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Cited by 6 publications

(1 citation statement)

References 56 publications

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“…Such matter-geometry coupling explains different eras of the Universe as well as the rotation curves of galaxies. Faraji et al [41] used Friedmann-Lemaitre-Robertson-Walker (FLRW) metric to observe the effect of coupling parameter and found that the range ( 0, 2.1 10 5 ] provides observationally viable inflationary model. Several remarkable results have also been obtained by using the Kuchowicz metric in this scenario [42].…”

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confidence: 99%

Anisotropic tolman V solutions by decoupling approach in f(R,T ²) gravity

Sharif¹,

Iltaf²

2022

Phys. Scr.

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This paper investigates the behavior of anisotropic static spheres that are constructed by employing a minimal geometric deformation in the framework of f(R,T^{2}) gravity ($T^{2}=T_{\zeta\nu}T^{\zeta\nu}$, $R$ is the Ricci scalar and $T_{\zeta\nu}$ is the energy-momentum tensor). We consider a spherical setup with two sources: seed and additional. It is assumed that the seed source is isotropic whereas the new source is responsible for inducing anisotropy. We deform the $g_{rr}$ component to split the field equations into two sets. The first array corresponds to the isotropic solution whereas the second set contains the effect of the anisotropic source. The system related to isotropic source is determined by the metric potentials of Tolman V solution while three solutions of the second set are constructed corresponding to three different constraints. The physical acceptability of all solutions is checked through energy conditions by employing the mass and radius of PSR J1614-2230 star. We also examine the stability, mass, compactness and redshift of the obtained solutions. We conclude that first two solutions satisfy the viability and stability criteria only for small values of the decoupling parameter while third solution is stable for its all possible values.

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confidence: 99%

Anisotropic tolman V solutions by decoupling approach in f(R,T ²) gravity

Sharif¹,

Iltaf²

2022

Phys. Scr.

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A survey of strong cosmic censorship conjecture beyond Einstein’s gravity

Khodadi

Firouzjaee

2022

Physics of the Dark Universe

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Cosmological inflation in f(Q,T) gravity

Shiravand

Fakhry

Farhoudi

2022

Physics of the Dark Universe

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Inflation in energy-momentum squared gravity in light of Planck2018

Cited by 6 publications

References 56 publications

Anisotropic tolman V solutions by decoupling approach in f(R,T ²) gravity

Anisotropic tolman V solutions by decoupling approach in f(R,T ²) gravity

A survey of strong cosmic censorship conjecture beyond Einstein’s gravity

Cosmological inflation in f(Q,T) gravity

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Resources

About

Inflation in energy-momentum squared gravity in light of Planck2018

Cited by 6 publications

References 56 publications

Anisotropic tolman V solutions by decoupling approach in f(R,T 2) gravity

Anisotropic tolman V solutions by decoupling approach in f(R,T 2) gravity

A survey of strong cosmic censorship conjecture beyond Einstein’s gravity

Cosmological inflation in f(Q,T) gravity

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Product

Resources

About

Anisotropic tolman V solutions by decoupling approach in f(R,T ²) gravity

Anisotropic tolman V solutions by decoupling approach in f(R,T ²) gravity