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相关论文: Generalized entropies and corresponding holographi…

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We develop new modified cosmological scenarios by applying the first law of thermodynamics at the Universe horizon, utilizing a new entropic functional that generalizes the standard Boltzmann-Gibbs-Shannon entropy. In particular, starting…

广义相对论与量子宇宙学 · 物理学 2026-02-24 G. G. Luciano , E. N. Saridakis

Classical and quantum entropic properties of holographic dark energy (HDE) are considered in view of the fact that its entropy is far more restrictive than the entropy of a black hole of the same size. In cosmological settings (in which HDE…

广义相对论与量子宇宙学 · 物理学 2008-11-26 R. Horvat

We formulate an extended holographic dark energy scenario based on a recently proposed two-parameter generalized entropic functional. Unlike constructions that phenomenologically impose modified entropy-area relations at the horizon level,…

广义相对论与量子宇宙学 · 物理学 2026-03-12 G. G. Luciano , E. N. Saridakis

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

In a previous paper we have introduced a new cosmological model that we called the logotropic model. The logotropic model is able to account, without free parameter, for the constant surface density of the dark matter halos, for their…

广义相对论与量子宇宙学 · 物理学 2019-12-03 Pierre-Henri Chavanis

Here we explain how C. Tsallis' reply (Entropy 2021, 23(5), 630) fails to respond to points raised in (Entropy 2020, 22(10), 1110) and introduces further inconsistencies on the origin of black hole entropy. In his reply, Tsallis argues that…

广义相对论与量子宇宙学 · 物理学 2022-10-04 Pedro Pessoa , Bruno Arderucio Costa , Steve Pressé

We introduce a holographic dark energy model that incorporates the first-order approximate Kaniadaski entropy, utilizing the Hubble horizon, $1/H$, as the infrared cutoff. We investigate the cosmological evolution within this framework. The…

宇宙学与河外天体物理 · 物理学 2024-06-14 Wei Fang , Guo Chen , Chao-Jun Feng , Wei Du , Chenggang Shu

By using the canonical Hamiltonian method, we obtain the mass and entropy of the black holes with general dynamical coupling constant $\lambda$ in Ho\v{r} ava-Lifshitz Gravity. Regardless of whether the horizon is sphere, plane or…

高能物理 - 理论 · 物理学 2009-09-28 Rong-Gen Cai , Li-Ming Cao , Nobuyoshi Ohta

Bounce cosmological models containing a dark viscous fluid in a spatially flat Friedmann-Robertson-Walker (FRW) universe are considered. The universe evolution is described in terms of generalized equation of state (EoS) parameters, in…

广义相对论与量子宇宙学 · 物理学 2024-11-19 E. Elizalde , A. V. Yurov , A. V. Timoshkin

In this paper we have considered the holographic dark energy and studied it's cosmology and thermodynamics. We have analysed the generalized second law (GSL) of thermodynamics in a flat universe consists of interacting dark energy and dark…

广义相对论与量子宇宙学 · 物理学 2014-02-03 Praseetha P. , Titus K. Mathew

By using the holographic hypothesis and Kaniadakis generalized entropy, which is based on relativistic statistical theory and modified Boltzmann-Gibbs entrory, we build Kaniadakis holographic dark energy (DE) model in the Brans-Dicke…

高能物理 - 理论 · 物理学 2022-10-26 S. Ghaffari

The paper deals with a theoretical model for interacting Tsallis holographic dark energy (THDE) whose infrared (IR) cut-off scale is set by the Hubble length. The interaction $Q$ between the dark sectors (dark energy and pressureless dark…

广义相对论与量子宇宙学 · 物理学 2020-10-27 Abdulla Al Mamon , Amir Hadi Ziaie , Kazuharu Bamba

It's widely recognized that the free energy landscape captures the essentials of thermodynamic phase transitions. In this work, we extend the findings of [1] by incorporating the nonextensive nature of black hole entropy. Specifically, the…

高能物理 - 理论 · 物理学 2024-11-08 F. Barzi , H. El Moumni , K. Masmar

In the derivation of holographic dark energy density, the area law of the black hole entropy plays a crucial role. However, the entropy-area relation can be modified from the inclusion of quantum effects, motivated from the loop quantum…

综合物理 · 物理学 2012-03-12 Ahmad Sheykhi , Kayoomars Karami , Mubasher Jamil , E. Kazemi , M. Haddad

The aim of this work is to study the role of relative entropy in the thermodynamics of black holes and cosmological horizons. We adapt some recent results on the relative entropy of coherent excitations of the vacuum, to find the variation…

广义相对论与量子宇宙学 · 物理学 2023-09-06 Edoardo D'Angelo

The question of what is the total entropy of the universe, how it compares to the maximal entropy of de Sitter space, and how it is distributed across the universe's components, bears considerable importance for a number of reasons. Here,…

宇宙学与河外天体物理 · 物理学 2025-09-23 Stefano Profumo , Liam Colombo-Murphy , Gabriela Huckabee , Maya Diaz Svensson , Stuti Garg , Ishan Kollipara , Alison Weber

Barrow and Tsallis Holographic Dark Energy (HDE) are two recently proposed extensions of the standard HDE framework, incorporating generalized corrections to horizon entropy through the use of Barrow and Tsallis entropies. Tsallis entropy…

广义相对论与量子宇宙学 · 物理学 2025-07-29 Giuseppe Gaetano Luciano , Andronikos Paliathanasis , Emmanuel N. Saridakis

This paper investigates whether the framework of fractional quantum mechanics can broaden our perspective of black hole thermodynamics. Concretely, we employ a {\it space-fractional} derivative \cite{Rie} as our main tool. Moreover, we…

广义相对论与量子宇宙学 · 物理学 2021-07-27 S. Jalalzadeh , F. Rodrigues da Silva , P. V. Moniz

We show that the concept of entropy and the dynamics of gravitation provide the linchpin in a unified scheme to understand the physics of black hole computers, space-time foam, dark energy, dark matter and the phenomenon of turbulence. We…

广义相对论与量子宇宙学 · 物理学 2020-01-08 Y. Jack Ng

One of the challenges of today's theoretical physics is to fully understand the connection between a geometrical object like area and a thermostatistical one like entropy, since area behaves analogously like entropy. The Bekenstein bound…

广义相对论与量子宇宙学 · 物理学 2022-11-23 Everton M. C. Abreu , Jorge Ananias Neto