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相关论文: Gravity cannot be quantized

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We find that the quantum of gravity, the graviton, has time-varying mass (the gomidium), and radius (the somium); both vary with the inverse of R; and its frequency is given by Hubble's parameter. Dark matter can be made of such gravitons.…

综合物理 · 物理学 2012-11-08 Marcelo Samuel Berman

All existing quantum gravity proposals share the same deep problem. Their predictions are extremely hard to test in practice. Quantum effects in the gravitational field are exceptionally small, unlike those in the electromagnetic field. The…

量子物理 · 物理学 2017-12-20 Chiara Marletto , Vlatko Vedral

When one takes into account gravitation, the measurement of space and time cannot be carried out with infinite accuracy. When quantum mechanics is reformulated taking into account this lack of accuracy, the resolution of the measurement…

广义相对论与量子宇宙学 · 物理学 2009-03-16 Rodolfo Gambini , Jorge Pullin

Inertia is defined axiomatically. The gravitational field is caused by the flow of intergalactic masses. Origin of space and time are connected with fields. The cosmos is bounded by inertia and gravitation, which is the sequence of…

综合物理 · 物理学 2007-05-23 Doriana Kiekhoeven

A suggestion is made for quantizing gravity perturbatively, and is illustrated for the example of a massive scalar field with gravity.

高能物理 - 理论 · 物理学 2007-11-15 A. Y. Shiekh

The Fermi-point scenario of emergent gravity has the following consequences: gravity emerges together with fermionic and bosonic matter; emergent fermionic matter consists of massless Weyl fermions; emergent bosonic matter consists of gauge…

广义相对论与量子宇宙学 · 物理学 2008-11-26 G. E. Volovik

Can we give the graviton a mass? Does it even make sense to speak of a massive graviton? In this essay I shall answer these questions in the affirmative. I shall outline an alternative to Einstein Gravity that satisfies the Equivalence…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Matt Visser

Twenty years ago, by extending the Wightman axiom framework, it has been found possible to quantize only a conformal factor of the gravitational field. Gravitons being excluded from this quantum scalar field theory, numerous attempts were…

广义相对论与量子宇宙学 · 物理学 2007-05-23 G. Burdet , M. Perrin

We show that when the gravitational field is treated quantum-mechanically, it induces fluctuations -- noise -- in the lengths of the arms of gravitational wave detectors. The characteristics of the noise depend on the quantum state of the…

高能物理 - 理论 · 物理学 2020-10-22 Maulik Parikh , Frank Wilczek , George Zahariade

Taking the quantization of electromagnetism as the paradigm, we show how this procedure cannot work for Einstein gravity. However, it does work for conformal gravity, a fourth-order derivative, renormalizable theory of gravity that Bender…

广义相对论与量子宇宙学 · 物理学 2023-01-18 Philip D. Mannheim

The principles of quantum field theory in flat spacetime suggest that gravity is mediated by a massless particle with helicity $\pm2$, the so-called graviton. It is regarded as textbook knowledge that, when the self-coupling of a particle…

广义相对论与量子宇宙学 · 物理学 2018-09-25 Carlos Barceló , Raúl Carballo-Rubio , Luis J. Garay

I give a pedagogical explanation of what it is about quantization that makes general relativity go from being a nearly perfect classical theory to a very problematic quantum one. I also explain why some quantization of gravity is…

广义相对论与量子宇宙学 · 物理学 2015-05-13 R. P. Woodard

There is no conclusive theoretical argument that would require the quantization of the gravitational field. A paradox presented by Mari et al. [Sci. Rep. 6, 22777 (2016)] and its resolution by Belenchia et al. [Phys. Rev. D 98, 126009…

广义相对论与量子宇宙学 · 物理学 2021-08-02 André Großardt

Gravity stands apart from other fundamental interactions in that it is locally equivalent to an accelerated frame and can be transformed away. Again it is indistinguishable from the geometry of space-time (which is an arena for all other…

综合物理 · 物理学 2014-02-21 C Sivaram , Kenath Arun , Kiren O , B N Sreenath

We emphasize that a specific aspect of quantum gravity is the absence of a super-selection rule that prevents a linear superposition of different gravitational charges. As an immediate consequence, we obtain a tiny, but observable,…

广义相对论与量子宇宙学 · 物理学 2008-11-26 G. Z. Adunas , E. Rodriguez-Milla , D. V. Ahluwalia

A new direction to understand gravity has recently been explored by considering classical gravity to be a derived interaction from an underlying theory. This underlying theory would involve new degrees of freedom at a deeper level and it…

综合物理 · 物理学 2014-03-10 Yuan K. Ha

It is well-known that energy-momentum is the source of gravitational field. For a long time, it is generally believed that only stars with huge masses can generate strong gravitational field. Based on the unified theory of gravitational…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Ning Wu

The quantum theory of gravity is considered based on the assumption that gravitational interaction occurs by means of the vector field of the Planck mass. Gravitational emission is considered as a process of the decay of proton into some…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Dmitri Khokhlov

I will argue that the inertial mass is greater than the gravitational mass for all objects which are held together primarily by gravitational forces. Thus, for celestial objects, like planets, stars and galaxies, their inertial mass is…

综合物理 · 物理学 2016-03-08 Gregory W. Horndeski

In the present article we shall consider the torsional completion of a gravitational background that is filled with electrodynamically interacting material fields, taken to be of fermionic type, eventually deriving properties like the…

广义相对论与量子宇宙学 · 物理学 2016-01-28 Luca Fabbri