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相关论文: Entropic force, holography and thermodynamics for …

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In this letter we explore the foundations of entropic cosmology and highlight some important flaws which have emerged and adopted in the recent literature. We argue that, when applying entropy and temperature on the cosmological horizon by…

广义相对论与量子宇宙学 · 物理学 2024-03-25 Hussain Gohar , Vincenzo Salzano

According to the holographic principle, the maximum amount of information stored in a region of space scales as the area of its two-dimensional surface, like a hologram. We show that the holographic principle can be understood heuristically…

广义相对论与量子宇宙学 · 物理学 2016-10-21 Y. Jack Ng

We try to study the thermodynamical features of a non-commutative inspired Schwarzschild-anti-deSitter black hole in the context of entropic gravity model, particularly for the model that is employed in a broad range of scales, from the…

综合物理 · 物理学 2014-09-19 S. Hamid Mehdipour

A new conception is proposed in Ref.\cite{Verlinde:2010hp,Padmanabhan:2009kr} that gravity is one kind of entropic force. In this letter, we try to discuss its applications to the modified gravities by using three different corrections to…

高能物理 - 理论 · 物理学 2011-08-05 Yi Zhang , Yun-gui Gong , Zong-Hong Zhu

The notions of temperature, entropy and `evaporation', usually associated with spacetimes with horizons, are analyzed using general approach and the following results, applicable to different spacetimes, are obtained at one go. (i) The…

广义相对论与量子宇宙学 · 物理学 2016-08-31 T. Padmanabhan

The unification of gravity with the three other forces has been an important goal of physics for some time now, because a quantum theory of gravity is necessary to explain the universe at its earliest moments. Its pursuit has largely…

高能物理 - 理论 · 物理学 2010-11-22 Abhiram Chivukula

Einstein-Hilbert action and its natural generalizations to higher dimensions (like the Lanczos-Lovelock action) have certain peculiar features. All of them can be separated into a bulk and a surface term, with a specific ("holographic")…

广义相对论与量子宇宙学 · 物理学 2010-08-06 Sanved Kolekar , T. Padmanabhan

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

We study thermodynamics of dynamical traversable wormholes. These wormholes are investigated in the background of different cosmological models, with and without the cosmological constant, and which include the power-law and exponential…

广义相对论与量子宇宙学 · 物理学 2021-06-23 Mudassar Rehman , Khalid Saifullah

The theory of gravity has undergone somewhat of a revolution lately. Gravity is no longer a fundamental force it seems, but rather an effect of holographic entropy. Building on the works by Jacobsson, Padmanabhan and Verlinde we review the…

综合物理 · 物理学 2010-06-04 Joakim Munkhammar

The idea of Verlinde that gravity is an entropic force caused by information changes associated with the positions of material bodies, is used in the present work for the FRW model of the Universe. Using modified Hawking temperature, the…

广义相对论与量子宇宙学 · 物理学 2016-10-31 Saugata Mitra , Subhajit Saha , Subenoy Chakraborty

We derive the Einstein field equations and black hole entropy from the first law of thermodynamics on a holographic time-like screen. Because of the universality of gravity, the stress tensor on the screen must be independent of the details…

高能物理 - 理论 · 物理学 2012-07-10 Miao Li , Rong-Xin Miao , Jun Meng

We derive the entropic force in the presence of the Schwarzschild black hole by using the local equipartition rule and holographic principle. On the other hand, when using the Tolman temperature, one does not arrive at the Newtonian force…

高能物理 - 理论 · 物理学 2010-02-05 Yun Soo Myung

The fact that one can associate thermodynamic properties with horizons brings together principles of quantum theory, gravitation and thermodynamics and possibly offers a window to the nature of quantum geometry. This review discusses…

广义相对论与量子宇宙学 · 物理学 2015-05-14 T. Padmanabhan

It is possible to obtain the gravitational field equations in a large class of theories from a thermodynamic variational principle which uses the gravitational heat density $\mathcal{S}_g$ associated with null surfaces. This heat density is…

广义相对论与量子宇宙学 · 物理学 2015-07-31 Dawood Kothawala , T. Padmanabhan

We introduce the cavity enclosing a source mass $M$ to define the temperature force. Starting with the Tolman temperature in the stationary spacetime, we find a non-relativistic temperature $T_{non}= T_\infty(1-\Phi/c^2)$ with the Newtonian…

高能物理 - 理论 · 物理学 2010-06-11 Yun Soo Myung , Hyung Won Lee , Yong-Wan Kim

We analyze the thermodynamical consistency of entropic-force cosmological models. Our analysis is based on a generalized entropy scaling with an arbitrary power of the Hubble radius. The Bekenstein-Hawking entropy, proportional to the area,…

广义相对论与量子宇宙学 · 物理学 2022-02-28 D. J. Zamora , C. Tsallis

We investigate a possibility of realizing the entropic force into the cosmology. A main issue is how the holographic screen is implemented in the Newtonian cosmology. Contrary to the relativistic realization of Friedmann equations, we do…

高能物理 - 理论 · 物理学 2011-09-12 Yun Soo Myung

We investigate theories in which gravity arises as a consequence of entropy. We distinguish between two approaches to this idea: holographic gravity, in which Einstein's equation arises from keeping entropy stationary in equilibrium under…

高能物理 - 理论 · 物理学 2016-06-23 Sean M. Carroll , Grant N. Remmen

We present some well-known energy-momentum complexes and evaluate the gravitational energy associated with static spherically symmetric spacetimes. In fact, the energy distribution of the aforementioned gravitational background that is…

综合物理 · 物理学 2014-07-22 S. Hamid Mehdipour