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相关论文: Macroscopic quantization of gravity

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Dark matter is the generally accepted paradigm in astrophysics and cosmology as a solution to the higher rate of rotation in galaxies, among many other reasons. But since there are still some problems encountered by the standard dark matter…

星系天体物理 · 物理学 2021-02-24 Hanna A. Sabat , Raed Z. Bani-Abdoh , Marwan S. Mousa

There are now several analyses reporting quantized differences in the redshifts between pairs of galaxies. In the simplest cases, these differential redshifts are found to be harmonics of fundamental periods of approximately 72 km/s and…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Firmin J. Oliveira

The observed matter in the universe accounts for just 5 percent of the observed gravity. A possible explanation is that Newton's and Einstein's theories of gravity fail where gravity is either weak or enhanced. The modified theory of…

宇宙学与河外天体物理 · 物理学 2014-11-20 Pedro G. Ferreira , Glenn Starkmann

In 2008 a group of NASA scientists reported an anomalous change in the speed of six spacecraft flybys of the Earth. The reported speed change for the NEAR spacecraft flyby is 13.46+-0.01 mm/s. It is known that general relativity theory…

综合物理 · 物理学 2011-03-01 J. C. Hafele

Surface gravity is one of a star's basic properties, but it is difficult to measure accurately, with typical uncertainties of 25-50 per cent if measured spectroscopically and 90-150 per cent photometrically. Asteroseismology measures…

太阳与恒星天体物理 · 物理学 2015-06-17 Fabienne A. Bastien , Keivan G. Stassun , Gibor Basri , Joshua Pepper

We use metric formalism in $f(R)$ modified gravity to study the dynamics of various systems from the solar system to the cosmological scale. we assume an ansatz for the derivative of action as a function of distance and describe the Pioneer…

天体物理学 · 物理学 2008-11-26 Reza Saffari , Sohrab Rahvar

We point out that the universality of free-fall can be tested by observing surface-gravity changes of the Earth. The Earth's inner core is weakly coupled to the rest part of the Earth by mainly gravitational forces. If there were a…

广义相对论与量子宇宙学 · 物理学 2008-12-18 Sachie Shiomi

Einstein said that gravity is an acceleration like any other acceleration. But gravity causes relativistic effects at non-relativistic speeds; so gravity could have relativistic origins. And since the strong force is thought to cause most…

综合物理 · 物理学 2019-10-24 Michael Byrne

A great number of macroquantum laws connecting gravity and electromagnetism if found empirically. To describe them the model of anisotropic gravitational field is proposed. This field is build as a superposition of planes and force lines…

综合物理 · 物理学 2007-05-23 Alexander M. Ilyanok

In the past few decades, various versions of modified gravity theories were proposed to mimic the effect of dark matter. Compared with the conventional Newtonian or relativistic dynamics, these theories contain some extra apparent force…

广义相对论与量子宇宙学 · 物理学 2023-02-01 Man Ho Chan , Chak Man Lee

Gravitation is the common underlying texture between General Relativity and Quantum Mechanics. We take gravitation as the link that can make possible the marriage between these two sciences. We use here the duality of Nature for…

综合物理 · 物理学 2008-11-26 Antonio Alfonso-Faus

The field equations of a generalized $f(R)$ type gravity model, in which there is an arbitrary coupling between matter and geometry, are obtained. The equations of motion for test particles are derived from a variational principle in the…

广义相对论与量子宇宙学 · 物理学 2009-05-26 T. Harko

We have obtained empirical laws for the variation of the Earth parameters with geologic time that are in agreement with coral fossil data obtained by Wells and Runcorn. Our model predicts that the day is lengthening at a rate of 2…

天体物理学 · 物理学 2007-05-23 A. I. Arbab

We discuss a model in which the fundamental scale of gravity is restricted to 10^{-3} eV. An observable modification of gravity occurs simultaneously at the Hubble distance and at around 0.1 mm. These predictions can be tested both by the…

高能物理 - 理论 · 物理学 2009-11-07 Gia Dvali , Gregory Gabadadze , Xin-rui Hou , Emiliano Sefusatti

A new approach to quantize the gravitational field is presented. It is based on the observation that the quantum character of matter becomes more significant as one gets closer to the big bang. As the metric loses its meaning, it makes…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Moshe Carmeli , Shimon Malin

This thesis focuses on late-time cosmic acceleration within modified theories of gravity, using various observational data sets and statistical analysis. The Universe is assumed to be spatially homogeneous and isotropic and is described by…

广义相对论与量子宇宙学 · 物理学 2025-03-05 Santosh V. Lohakare

The standard big bang cosmology has been greatly successful in explaining many observational aspects of the real universe. However, two particular diffficulties faced by it are the so-called ``horizon'' and ``flatness'' problems. By…

综合物理 · 物理学 2007-05-23 Abhas Mitra

Gravitational instability in classical Jeans theory, General Relativity, and modified gravity is considered. The background density increase leads to a faster growth of perturbations in comparison with the standard theory. The transition to…

广义相对论与量子宇宙学 · 物理学 2015-06-22 E. V. Arbuzova , A. D. Dolgov , L. Reverberi

Modified Newtonian Dynamics (MOND) is an alternative to the dark matter hypothesis that attempts to explain the "missing gravity" problem in astrophysics and cosmology through a modification to objects' dynamics. Since its conception in…

宇宙学与河外天体物理 · 物理学 2025-05-29 Harry Desmond

This is an essay sketching the line of thinking which has led the present author to propose the constituent or atomic model of gravitation more than a decade ago. It turns out that viewing the problem of gravitation as a quantum many body…

天体物理学 · 物理学 2009-10-19 Pawel O. Mazur