Cosmological model due to dimensional reduction of higher-dimensional massive gravity theory

Nakarachinda, Ratchaphat; Wongjun, Pitayuth

doi:10.1140/epjc/s10052-018-6317-8

Cited by 5 publications

(3 citation statements)

References 111 publications

(127 reference statements)

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“…It is important to note that the potential terms include the non-dynamical metric f µν called the fiducial metric or the reference metric. The form of solution of the physical metric g µν significantly depends on the form of the fiducial metric [64,65,66]. The corresponding equation of motion to the above action can be written as…”

Section: Drgt Black String Backgroundmentioning

confidence: 99%

Greybody factor for black string in dRGT massive gravity

2019

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The greybody factor from the black string in the de Rham-Gabadadze-Tolley (dRGT) massive gravity theory is investigated in this study. The dRGT massive gravity theory is one of the modified gravity theories used in explaining the current acceleration in the expansion of the universe. Through the use of cylindrical symmetry, black strings in dRGT massive gravity are shown to exist. When quantum effects are taken into account, black strings can emit thermal radiation called Hawking radiation. The Hawking radiation at spatial infinity differs from that at the source by the so-called greybody factor. In this paper, we examined the rigorous bounds on the greybody factors from the dRGT black strings. The results show that the greybody factor crucially depends on the shape of the potential which is characterized by model parameters. The results agree with ones in quantum mechanics; the higher the potential, the harder it is for the waves to penetrate, and also the lower the bound for the rigorous bounds.

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Section: Drgt Black String Backgroundmentioning

confidence: 99%

Greybody factor for black string in dRGT massive gravity

2019

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“…where R is the Ricci scalar and U is a potential for the graviton which modifies the gravitational sector with the parameter m g interpreted as graviton mass. It is important to note that the form of the fiducial metric f µν can provide a significant form of the physical metric g µν [57][58][59]. Note that for the following calculations, we adopt the natural unit by which the Newtonian gravitational constant is unity, i.e.…”

Section: Drgt Massive Gravitymentioning

confidence: 99%

Rotating black string in dRGT massive gravity

Ghosh,

Kumar,

Tannukij

et al. 2019

Preprint

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One of the solutions of Einstein field equation with cylindrical symmetry is known as black string solution. In this work, the rotating black string solution in dRGT massive gravity is obtained and then called rotating-dRGT black string solution. This solution is a kind of generalized version of rotating AdS/dS black sting solution containing an additional two more terms characterizing the structure of graviton mass. The horizon structures of the black string are explored. The thermodynamical properties of the black string are investigated. We found that it is possible to obtain the Hawking-Page phase transition depending on the additional structure of the graviton mass, while it is not possible for usual rotating-AdS/dS black string. By analyzing the free energy, we also found that the stable rotating black string is bigger than the non-rotating one.

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“…From the perspective of astrophysics, massive gravity is studied for neutron star [67,68], white dwarfs [69], and dark energy [70], which leads to small deviation from the general relativity and the cosmological behavior of this gravity has been studied in [71][72][73][74].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics, phase structure and quasinormal modes for AdS Heyward massive black hole

Singh,

Veer Singh,

Kumar Singh

2024

Phys. Scr.

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In this paper, we find the new exact $AdS$ black hole (BH) solution in the presence of massive gravity and nonlinear electrodynamics (NED). The obtained black hole solution (known as $AdS$ Heyward massive BH ) interpolates with the $AdS$ Heyward BH in the absence of graviton mass ($m$) and massive BH when the magnetic charge is switched off. We calculate the exact expression of thermodynamics quantities including local (heat capacity), global (free energy), and dynamical stability (quasinormal modes) of the obtained BH solution. The heat capacity of the BH diverges where the temperature is maximum and free energy is minimum. We also study the extended thermodynamics of the BH when the cosmological constant ($\Lambda$) is treated as the thermodynamics pressure ($P=-\Lambda/8\pi$). We analyze the first and second-order phase transition by studying the behavior of Gibbs free energy and these phase transitions are similar to the van der Walls phase transition. The effect of magnetic charge and graviton mass are opposite to each other on critical values.

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Cosmological model due to dimensional reduction of higher-dimensional massive gravity theory

Cited by 5 publications

References 111 publications

Greybody factor for black string in dRGT massive gravity

Greybody factor for black string in dRGT massive gravity

Rotating black string in dRGT massive gravity

Thermodynamics, phase structure and quasinormal modes for AdS Heyward massive black hole

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