Open Science Repository Physics

doi: 10.7392/openaccess.45011848

Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields

Hui Peng [1], Yan-Yi Peng [2], Kwang-Shang Wang [3]

[1] Guangdong SSL Innovation Center, ORCID 0000-0002-1844-3163; [2] University of Chicago, ORCID 0000-0002-4210-6861; [3] Pennsylvania State University, ORCID 0000-0001-8430-7541

Abstract

There are difficulties with renormalizing quantum theories of gravity and unifying gravity with electromagnetic fields. In this article, we postulate the Precise Equivalence Principle (PEP) as a basic principle to establish effective gravitational theories. The PEP leads to a conclusion that gravitational fields are Abelian gauge fields with an internal Ug (1) symmetry. Next, we establish Gravitodynamics that predicts the existences of gravito-magnetic fields and gravitational waves. Moreover, we quantize Gravitodynamics and show that Quantum Gravitodynamics (QGD) is renormalizable. The QGD predicts: (1) the quantum of the gravitational fields, which we name Gravito-boson, carries energy and momentum, has zero rest mass hence zero gravitational charge; thus a gravitational field is not the source of itself; (2) Gravito-boson is a spin 1 particle which has two physically independent transverse polarizations and moves at a finite speed; (3) the existence of negative gravitational charges that repel the positive gravitational charges; (4) gravitational fields change Dirac particles’ effective rest mass. We unify Gravity with electromagnetic fields in the framework of gauge theory with internal Ug (1) × Ue (1) group.

Keywords: internal Ug (1) symmetry of gravity, quantum theory of gravity, renormalization of quantum theory of gravity, negative gravitational charge, unification of electromagnetic gravitational fields.

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APA

Peng, H., Peng, Y.-Y., & Wang, K.-S. (2015). Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields. Open Science Repository Physics, Online(open-access), e45011848. doi:10.7392/openaccess.45011848

MLA

Peng, Hui, Yan-Yi Peng, and Kwang-Shang Wang. “Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields.” Open Science Repository Physics Online.open-access (2015): e45011848. Web. 18 Dec. 2015.

Chicago

Peng, Hui, Yan-Yi Peng, and Kwang-Shang Wang. “Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields.” Open Science Repository Physics Online, no. open-access (December 21, 2015): e45011848. doi:10.7392/openaccess.45011848.

Harvard

Peng, H., Peng, Y.-Y. & Wang, K.-S., 2015. Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields. Open Science Repository Physics, Online(open-access), p.e45011848. Available at: http://www.open-science-repository.com/physics-45011848.html.

Science

1. H. Peng, Y.-Y. Peng, K.-S. Wang, Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields, Open Sci. Repos. Phys. Online, e45011848 (2015).

Nature

1. Peng, H., Peng, Y.-Y. & Wang, K.-S. Gauge Theory of Gravity with Internal U (1) Symmetry and Unification of Gravitational and Electromagnetic Fields. Open Sci. Repos. Phys. Online, e45011848 (2015).

doi

Research registered in the DOI resolution system as: 10.7392/openaccess.45011848.

This work is licensed under a Creative Commons Attribution 3.0 Unported License.