Hawking temperature and the emergent cosmic space

Hashemi, M.; Jalalzadeh, S.; Farahani, S. Vasheghani

doi:10.48550/arxiv.1308.2383

Cited by 3 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The idea of treating the cosmic space as an emergent process has been applied to the contexts of horizon entropy scenarios, modified gravities, BIonic systems and brane scenarios, and the corresponding cosmological equations in these theories have been successfully derived [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37]. For more investigations on Padmanabhan's idea, see [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54].…”

Section: Introductionmentioning

confidence: 99%

Emergence of cosmic space and horizon entropy maximization from Tsallis and Cirto entropy

Chen

2022

Eur. Phys. J. C

View full text Add to dashboard Cite

In this note by use of the idea of the emergence of cosmic space suggested by Padmanabhan (Emergence and expansion of cosmic space as due to the quest for holographic equipartition; Res Astro Astrophys 12:891, 2012), we derive the modified Friedmann equation of a Friedmann-Robertson-Walker (FRW) Universe from Tsallis and Cirto entropy in $$(n+1)$$ ( n + 1 ) dimension with any spatial curvature. We investigate further the consistency of the law of emergence with the maximization of horizon entropy in the context of Tsallis and Cirto horizon entropy. Our results reveal the deep connection between the law of emergence and horizon thermodynamics.

show abstract

Section: Introductionmentioning

confidence: 99%

Emergence of cosmic space and horizon entropy maximization from Tsallis and Cirto entropy

Chen

2022

Eur. Phys. J. C

View full text Add to dashboard Cite

show abstract

“…We, therefore, suggest the application of this fundamental relation of thermodynamics as the correct method for obtaining the expansion law and its generalized versions. For another approach see [29].…”

Section: Modified Dynamic Equation Of Frw Universe In a Horava-lifshi...mentioning

confidence: 99%

Generalized entropies and the expansion law of the universe

Dezaki

Mirza

2015

Gen Relativ Gravit

View full text Add to dashboard Cite

We suggest that using the first law of thermodynamics is a convenient method to obtain a correct form of the expansion law of the universe \cite{T. Padmanabhan1}. We will, then, use this idea to obtain the expansion law for a Kodama observer. By using the expansion law for a Kodama observer, we can obtain the dynamic equation of the FRW universe for deformed Horava-Lifshitz gravity. The use of the first law of thermodynamics also leads to a new approach for obtaining the Friedmann equations for f(R) and scalar tensor gravities.Comment: 7 page

show abstract

“…Moreover, the standard evolution of the universe was also reproduced directly from the proposed relation. This proposal inspired plenty of related studies and remarkable progress [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. However, in the framework of Padmanabhan's conjecture, the study of quantum effect is missing.…”

Section: Introductionmentioning

confidence: 99%

The Quantum Effect on Friedmann Equation in FRW Universe

Zhang

Kuang

2018

Advances in High Energy Physics

View full text Add to dashboard Cite

We study the modified Friedmann equation in the Friedmann-Robertson-Walker universe with quantum effect. Our modified results mainly stem from the new entropy-area relation and the novel idea of Padmanabhan, who considers the cosmic space to be emerging as the cosmic time progresses, so that the expansion rate of the universe is determined by the difference of degrees of freedom between the holographic surface and the bulk inside. We also discuss the possibility of having bounce cosmological solution from the modified Friedmann equation in spatially flat geometry.

show abstract

Hawking temperature and the emergent cosmic space

Cited by 3 publications

References 15 publications

Emergence of cosmic space and horizon entropy maximization from Tsallis and Cirto entropy

Emergence of cosmic space and horizon entropy maximization from Tsallis and Cirto entropy

Generalized entropies and the expansion law of the universe

The Quantum Effect on Friedmann Equation in FRW Universe

Contact Info

Product

Resources

About