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相关论文: Tsallis holographic dark energy for inflation

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This is a completely rewritten version of the talk I gave at the Philosophy of Cosmology conference in Tenerife, September 2014, which incorporates elements of my IFT Madrid Anthropics Conference talk. The original was too technical. The…

高能物理 - 理论 · 物理学 2015-01-13 Tom Banks

This article investigates the relationship between the holographic principle and the laws of thermodynamics in explaining the late-time acceleration of the universe. First, we explore the possibilities of generating the standard holographic…

广义相对论与量子宇宙学 · 物理学 2023-01-18 Manosh T. Manoharan , N. Shaji , Titus K. Mathew

We propose a method to relate the holographic minimal information density to the de Broglie's wavelength at a given universe temperature $T$. To figure this out, we assume that the thermal length of massive and massless constituents…

广义相对论与量子宇宙学 · 物理学 2017-07-11 Orlando Luongo

Holographic dark energy (HDE), presents a dynamical view of dark energy which is consistent with the observational data and has a solid theoretical background. Its definition follows from the entropy-area relation $S(A)$, where $S$ and $A$…

广义相对论与量子宇宙学 · 物理学 2014-11-20 M. Umar Farooq , Muneer A. Rashid , Mubasher Jamil

Thermal inflation, a brief low energy inflation after the primordial inflation, resolves the moduli problem in the context of supersymmetric cosmology. In the thermal inflation scenario, the primordial power spectrum is modestly redshifted…

宇宙学与河外天体物理 · 物理学 2020-02-14 Heeseung Zoe

The growing cosmological interest of different entropy functions (like the Tsallis entropy, the R\'{e}nyi entropy, the Barrow entropy, the Sharma-Mittal entropy, the Kaniadakis entropy and the Loop Quantum gravity entropy) naturally raises…

广义相对论与量子宇宙学 · 物理学 2023-09-18 Sergei D. Odintsov , Simone D'Onofrio , Tanmoy Paul

We introduce the cosmic holographic bounds with two UV and IR cutoff scales, to deal with both the inflationary universe in the past and dark energy in the future. To describe quantum fluctuations of inflation on sub-horizon scales, we use…

高能物理 - 理论 · 物理学 2009-11-11 Yun Soo Myung

By employing Tsallis' extensive but non-additive $\delta$-entropy, we formulate the first two laws of thermodynamics for gravitating systems. By invoking Carath\'{e}odory's principle, we pay particular attention to the integrating factor…

广义相对论与量子宇宙学 · 物理学 2023-10-31 Petr Jizba , Gaetano Lambiase

The model of generalized Tsallis holographic dark energy (which is known to be particular representative of Nojiri-Odintsov HDE) with event horizon as cut-off is investigated using methods of dynamical analysis. We take into consideration…

广义相对论与量子宇宙学 · 物理学 2023-08-16 A. V. Astashenok , A. S. Tepliakov

Among various scenarios to explain the acceleration of the universe expansion, the holographic dark energy (HDE) model has got a lot of enthusiasm recently. In the derivation of holographic energy density, the area relation of the black…

综合物理 · 物理学 2011-09-28 Ahmad Sheykhi , Mubasher Jamil

In this work we explore the scope of two holographic dark energy models within the interacting scenario for the dark sector and spatial curvature. For one holographic model we consider the usual formula for the dark energy density with the…

广义相对论与量子宇宙学 · 物理学 2023-05-10 Azucena Bolaños , Miguel Cruz , Samuel Lepe , David Rogelio Márquez-Castillo

The present study reports a reconstruction scheme of a Dark Energy (DE) model with higher order derivative of Hubble parameter, which is a particular case of Nojiri-Odintsov holographic DE [S. Nojiri and S. D. Odintsov, Gen. Relativ.…

综合物理 · 物理学 2020-06-15 Gargee Chakraborty , Surajit Chattopadhyay

Motivated by the holographic principle, it has been suggested that the dark energy density may be inversely proportional to the area $A$ of the event horizon of the universe. However, such a model would have a causality problem. In this…

广义相对论与量子宇宙学 · 物理学 2012-06-06 Antonio Pasqua , A. Khodam-Mohammadi , Mubasher Jamil , R. Myrzakulov

The maximum entropy principle is largely used in thresholding and segmentation of images. Among the several formulations of this principle, the most effectively applied is that based on Tsallis non-extensive entropy. Here, we discuss the…

计算机视觉与模式识别 · 计算机科学 2015-08-06 Amelia Carolina Sparavigna

This study explores the interaction between non-extensive entropic FLRW cosmology and the power-law inflationary model, with a focus on the overlap between the scalar spectral index `$n_s$' and the tensor-to-scalar ratio `$r$'. Based on a…

广义相对论与量子宇宙学 · 物理学 2024-09-26 A. Khodam-Mohammadi

In this work, the holographic dark energy model is constructed by using the non-extensive nature of the Schwarzschild black hole via the R\'enyi entropy. Due to the non-extensivity, the black hole can be stable under the process of fixing…

广义相对论与量子宇宙学 · 物理学 2024-07-30 Ratchaphat Nakarachinda , Chakrit Pongkitivanichkul , Daris Samart , Lunchakorn Tannukij , Pitayuth Wongjun

This paper presents a detailed study of the thermodynamics of charged BTZ black holes using the conformal holographic extended thermodynamics formalism and Tsallis statistics. The cornerstone of our thermodynamic framework is the re-scaling…

高能物理 - 理论 · 物理学 2024-11-18 Yahya Ladghami , Brahim Asfour , Amine Bouali , Taoufik Ouali , G. Mustafa

There has been, quite recently, a discussion on how holographic-inspired bounds might be used to encompass the present-day dark energy and early-universe inflation into a single paradigm. In the current treatment, we point out an…

高能物理 - 理论 · 物理学 2009-11-11 A. J. M. Medved

We study a scenario for the very early universe in which there is a fast phase transition from a non-geometric, high temperature phase to a low temperature, geometric phase described by a classical solution to the Einstein equations. In…

天体物理学 · 物理学 2008-11-26 Joao Magueijo , Lee Smolin , Carlo R. Contaldi

We investigate the cosmological implications of Tsallis entropy in two widely discussed frameworks: the Cai-Kim thermodynamic derivation of the Friedman equations and the Tsallis holographic dark energy (HDE) scenario, considering both the…