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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

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

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

Based on Padmanabhan's theory, the spatial expansion of the Universe can be explained by the emergence of space as cosmic time progresses. To further explore this idea, we have developed fractional-fractal Friedmann and Raychaudhuri…

广义相对论与量子宇宙学 · 物理学 2023-09-29 P. F. da Silva Junior , E. W. de Oliveira Costa , S. Jalalzadeh

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

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

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

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

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

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

In the emergent cosmic space scenario recently proposed by Padmanabhan, the expansion of the universe is attributed to the difference between the number of degrees of freedom on a holographic surface and the one in the bulk. Based on this…

广义相对论与量子宇宙学 · 物理学 2013-09-18 Fang-Fang Yuan , Yong-Chang Huang

A very interesting new proposal on the origin of the cosmic expansion was recently suggested by Padmanabhan [arXiv:1206.4916]. He argued that the difference between the surface degrees of freedom and the bulk degrees of freedom in a region…

广义相对论与量子宇宙学 · 物理学 2013-09-24 A. Sheykhi , M. H. Dehghani , S. E. Hosseini

In this paper, we propose a model in which an additional pressure due to the effects of the entropic force is added to the ideal fluid. Furthermore, we obtain the dynamic equation in the FRW universe which contains the quantum gravitational…

高能物理 - 理论 · 物理学 2016-03-08 Fei-Quan Tu , Yi-Xin Chen

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

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 spatial expansion of the universe can be described as the emergence of space with the progress of cosmic time, through a simple equation, $\Delta V = \Delta t\left(N_{surf}- N_{bulk}\right)$. This law of emergence suggested by…

广义相对论与量子宇宙学 · 物理学 2021-05-04 Krishna P B , Titus K Mathew

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

Padmanabhan in his paper [arxiv: 1206.4916] put forth an intriguing idea arguing that the accelerated expansion of the universse can be viewed as the emergence of cosmic space as cosmic time progresses, with the expansion triggered due to…

广义相对论与量子宇宙学 · 物理学 2018-12-26 Mahith M. , Krishna P. B. , Titus K. Mathew

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

We derive a unified expansion law for our universe from the first law of thermodynamics on the apparent horizon, where entropic evolution depicts the emergence of cosmic space. The derivation advances a general form for degrees of freedom…

广义相对论与量子宇宙学 · 物理学 2023-02-22 Hassan Basari V. T. , P. B. Krishna , Titus K. Mathew
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