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A previous calculation of Newton's gravitational coupling constant G is generalized. This generalization makes it possible to have "atoms of two-dimensional space" with an integer dimension d_{atom} of the internal space, where the case…

高能物理 - 理论 · 物理学 2015-05-27 F. R. Klinkhamer

A n-time generalization of Newton's law (of universal gravitation) formula in N =n + d + 1-dimensional space-time is conjectured. This formula implies a relation for effective N-dimensional gravitational constant G_{eff} = G cos^2 \theta,…

广义相对论与量子宇宙学 · 物理学 2009-05-18 V. D. Ivashchuk

Von Neumann's procedure is applied for quantization of General Relativity. We quantize the initial data of dynamical variables at the Planck epoch, where the Hubble parameter coincides with the Planck mass. These initial data are defined…

广义相对论与量子宇宙学 · 物理学 2017-08-11 A. B. Arbuzov , A. Yu. Cherny , D. J. Cirilo-Lombardo , R. G. Nazmitdinov , Nguyen Suan Han , A. E. Pavlov , V. N. Pervushin , A. F. Zakharov

This work investigates in which form quantities with Planck dimensions occur already in the common quantum theory with local Lorentz symmetry. Since such Planck quantities as Planck length or Planck mass involve the Planck constant h, the…

广义相对论与量子宇宙学 · 物理学 2016-02-09 Rainer Collier

The cosmological constant combined with Planck's constant and the speed of light implies a quantum of mass of approximately 2 x 10^{-65}g. This follows either from a generic dimensional analysis, or from a specific analysis where the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Paul S. Wesson

Motivated by the conjecture that the cosmological constant problem is solved by strong quantum effects in the infrared we use the exact flow equation of Quantum Einstein Gravity to determine the renormalization group behavior of a class of…

高能物理 - 理论 · 物理学 2009-11-10 M. Reuter , F. Saueressig

Recently the global variation of the Planck mass in the General Relativistic Einstein-Hilbert action was proposed as a self-tuning mechanism of the cosmological constant preventing vacuum energy from freely gravitating. We show that this…

广义相对论与量子宇宙学 · 物理学 2020-08-12 Daniel Sobral-Blanco , Lucas Lombriser

It is shown that Einstein gravity in four dimensions with small cosmological constant and small extra dimensions can be obtained by spontaneous compactification of Lovelock gravity in vacuum. Assuming that the extra dimensions are compact…

高能物理 - 理论 · 物理学 2009-09-09 Fabrizio Canfora , Alex Giacomini , Ricardo Troncoso , Steven Willison

We discuss recently introduced scale-free Einstein equations, where the information from their trace part is lost. These equations are classically equivalent to General Relativity, yet the Newton constant becomes a constant of integration…

广义相对论与量子宇宙学 · 物理学 2021-07-21 Alexander Vikman

Einstein's theory of general relativity, which contains a universal value of the Planck mass, has been so far successfully invoked to explain gravitational dynamics from sub-millimeter scales to the scale of the cosmological horizon.…

天体物理学 · 物理学 2009-11-13 Georg Robbers , Niayesh Afshordi , Michael Doran

We develop the $n$-dimensional cosmology for $f(\mathcal{G})$ gravity, where $\mathcal{G}$ is the \emph{Gauss-Bonnet} topological invariant. Specifically, by the so-called Noether Symmetry Approach, we select $f(\mathcal{G})\simeq…

广义相对论与量子宇宙学 · 物理学 2021-11-29 Francesco Bajardi , Salvatore Capozziello

I discuss a model for quantized gravitation based on the simplicial lattice discretization. It has been studied in some detail using a comprehensive finite size scaling analysis combined with renormalization group methods. The results are…

高能物理 - 理论 · 物理学 2017-08-23 H. W. Hamber

The Hamiltonian approach to the General Relativity and the Standard Model is studied in the context of its consistency with the Newton law, the Higgs effect, the Hubble cosmological evolution and the Cosmic Microwave Background radiation…

广义相对论与量子宇宙学 · 物理学 2014-11-18 L. A. Glinka , V. N. Pervushin

The Stringy Uncertainty relations, and corrections thereof, were explicitly derived recently from the New Relativity Principle that treats all dimensions and signatures on the same footing and which is based on the postulate that the Planck…

高能物理 - 理论 · 物理学 2015-06-25 Carlos Castro

We consider a certain theory of 3-forms in 7 dimensions, and study its dimensional reduction to 4D, compactifying the 7-dimensional manifold on the 3-sphere of a fixed radius. We show that the resulting 4D theory is General Relativity (GR)…

高能物理 - 理论 · 物理学 2017-08-23 Kirill Krasnov

We start from the Einstein-Hilbert action for the gravitational field in the presence of a "point particle" source, and cast the action into the corresponding phase space form. The dynamical variables of such a system satisfy the point…

广义相对论与量子宇宙学 · 物理学 2015-05-28 Matej Pavsic

The kinematics of the two-scale relativity theory (new relativity) is revisited using a simplified approach. This approach allows us not only to derive the dispersion equation introduced earlier by Kowalski-Glikman, but to find an…

综合物理 · 物理学 2016-09-08 A. Granik

We investigate a $D$ dimensional generalization of the Schroedinger-Newton equations, which purport to describe quantum state reduction as resulting from gravitational effects. For a single particle, the system is a combination of the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 R. G. Melko , R. B. Mann

The Planck units were originally derived from a dimensional analysis without a deeper understanding of their meaning. It was later believed that these units may provide a link between quantum theory and gravity in a yet to be developed…

综合物理 · 物理学 2015-06-05 M. Tajmar

Motivated by the conjecture that the cosmological constant problem could be solved by strong quantum effects in the infrared we use the exact flow equation of Quantum Einstein Gravity to determine the renormalization group behavior of a…

高能物理 - 理论 · 物理学 2009-11-07 M. Reuter , F. Saueressig
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