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An emergence of cosmic space has been suggested by Padmanabhan in [arXiv:1206.4916]. This new interesting approach argues that the expansion of the universe is due to the difference between the number of degrees of freedom on a holographic…

高能物理 - 理论 · 物理学 2014-04-17 Ahmed Farag Ali

Intrigued by the holographic principle, Padmanabhan recently proposed a novel idea, saying that our cosmic space is emergent as cosmic time progresses. In particular, the expansion rate of the Universe is related to the difference between…

高能物理 - 理论 · 物理学 2013-09-12 Yi Ling , Wen-Jian Pan

Padmanabhan [arXiv:1206.4916] argues that the cosmic acceleration can be understood from the perspective that spacetime dynamics is an emergence phenomena. By calculating the difference between the surface degrees of freedom and the bulk…

广义相对论与量子宇宙学 · 物理学 2013-04-19 Ahmad Sheykhi

The conception of gravity as an emergent phenomenon, rooted in the thermodynamics of spacetime, offers a radical departure from its geometric description. This paper investigates the emergence of cosmic space by synthesizing two key…

广义相对论与量子宇宙学 · 物理学 2026-01-05 Ahmad Sheykhi

Recently, a novel idea about our expanding Universe was proposed by T. Padmanabhan [arXiv:1206.4916]. He suggested that the expansion of our Universe can be thought of as the emergence of space as cosmic time progresses. The emergence is…

高能物理 - 理论 · 物理学 2012-11-13 Ke Yang , Yu-Xiao Liu , Yong-Qiang Wang

In a recent paper [arXiv:1206.4916] by T. Padmanabhan, it was argued that our universe provides an ideal setup to stress the issue that cosmic space is emergent as cosmic time progresses and that the expansion of the universe is due to the…

广义相对论与量子宇宙学 · 物理学 2012-11-09 Rong-Gen Cai

From a fractal perspective, the entropy bound of gravitational systems undergoes changes. Furthermore, in the cosmological setting, the conservation law of a perfect fluid is also altered in such systems, affecting spatial elements like…

广义相对论与量子宇宙学 · 物理学 2024-04-11 R. Jalalzadeh , S. Jalalzadeh , A. Sayahian Jahromi , H. Moradpour

In this paper, we show that Padmanabhan's conjecture for the emergence of cosmic space [arXiv:1206.4916] holds for the flat Friedmann-Robertson-Walker universe in Einstein gravity but does not hold for the non-flat case unless one uses the…

高能物理 - 理论 · 物理学 2014-05-05 Ee Chang-Young , Daeho Lee

The recent research on the connection between gravity and thermodynamics suggests that gravity could be an emergent phenomenon. Following this, Padmanabhan proposed a novel idea that the expansion of the universe can be interpreted as…

广义相对论与量子宇宙学 · 物理学 2022-06-22 P. B. Krishna , Hassan Basari V. T. , Titus K Mathew

A novel idea that the cosmic acceleration can be understood from the perspective that spacetime dynamics is an emergent phenomena was proposed by T. Padmanabhan. The Friedmann equations of FRW universe can be derived from different gravity…

广义相对论与量子宇宙学 · 物理学 2014-03-04 Wen-Yuan Ai , Xian-Ru Hu , Hua Chen , Jian-Bo Deng

Researches in the several decades have shown that the dynamics of gravity is closely related to thermodynamics of the horizon. In this paper, we derive the Friedmann acceleration equation based on the idea of "emergence of space" and…

广义相对论与量子宇宙学 · 物理学 2018-09-03 Fei-Quan Tu , Yi-Xin Chen , Bin Sun , You-Chang Yang

Utilizing Kaniadakis entropy associated with the apparent horizon of the Friedmann-Robertson-Walker (FRW) Universe and applying the emergence of cosmic space paradigm, we deduce the modified Friedmann equation for a non-flat…

广义相对论与量子宇宙学 · 物理学 2024-05-08 Pranav Prasanthan , Sarath Nelleri , Navaneeth Poonthottathil , Sreejith E K

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 T. Padmanabhan, who considers the cosmic…

广义相对论与量子宇宙学 · 物理学 2018-03-15 Wei Zhang , Xiao-Mei Kuang

According to the principle of emergence, the expansion of the universe can be explained as the emergence of space with the progress of cosmic time. We have analytically solved the equation of emergence proposed by Padmanabhan by assuming…

广义相对论与量子宇宙学 · 物理学 2022-07-26 Hassan Basari V. T. , Krishna P. B. , Priyesh K. V. , Titus K. Mathew

The fractal cosmological model which accounts for observable fractal properties of the Universe's large-scale structure is constructed. In this framework these properties are consequences of the rotary symmetry of charged scalar meson…

宇宙学与河外天体物理 · 物理学 2012-12-03 I. K. Rozgacheva , A. A. Agapov

In this work we present a derivation of modified Raychaudhuri and Friedmann equations from a phenomenological model of quantum gravity based on the thermodynamics of spacetime. Starting from general gravitational equations of motion which…

广义相对论与量子宇宙学 · 物理学 2023-09-13 Ana Alonso-Serrano , Marek Liška , Antonio Vicente-Becerril

Alternative scenarios to the Big Bang singularity have been subject of intense research for several decades by now. Most popular in this sense have been frameworks were such singularity is replaced by a bounce around some minimal…

广义相对论与量子宇宙学 · 物理学 2017-09-25 Emanuele Alesci , Gioele Botta , Francesco Cianfrani , Stefano Liberati

It has been shown that Friedmann equation of FRW universe can be derived from the idea which says cosmic space is emergent as cosmic time progresses and our universe is expanding towards the state with the holographic equipartition by…

高能物理 - 理论 · 物理学 2015-06-15 Fei-Quan Tu , Yi-Xin Chen

In this paper, we present a new cosmological model using fractal manifold. We prove that a space defined by this kind of manifold is an expanding space. This model provides us with consistent arguments pertaining to the relationship between…

综合物理 · 物理学 2007-11-21 Faycal Ben Adda

The aim of this work is to model the evolution of the cosmic space based on thermodynamical parameters. The universe is considered to have an apparent horizon radius with a Kodama-Hayward temperature assigned to it. The method is founded on…

广义相对论与量子宇宙学 · 物理学 2015-03-31 M. Hashemi , S. Jalalzadeh , S. Vasheghani Farahani
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