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High Energy Physics - Theory

arXiv:1805.03148 (hep-th)
[Submitted on 8 May 2018]

Title:Sakharov's induced gravity and the Poincaré gauge theory

Authors:Masud Chaichian, Markku Oksanen, Anca Tureanu
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Abstract:We explore Sakharov's seminal idea that gravitational dynamics is induced by the quantum corrections from the matter sector. This was the starting point of the view that gravity has an emergent origin, which soon gained impetus due to the advent of black hole thermodynamics. In the generalized framework of Riemann--Cartan spacetime with both curvature and torsion, the induced gravitational action is obtained for free nonminimally coupled scalar and Dirac fields. For a realistic matter content, the induced Newton constant is obtained to be of the magnitude of the ultraviolet cutoff, which implies that the cutoff is of the order of the Planck mass. Finally, we conjecture that the action for any gauge theory of gravity at low energies can be induced by Sakharov's mechanism. This is explicitly shown by obtaining the Poincaré gauge theory of gravity.
Comments: 34 pages, Contribution to the Memorial Volume for Jacob Bekenstein
Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc)
Cite as: arXiv:1805.03148 [hep-th]
  (or arXiv:1805.03148v1 [hep-th] for this version)
  https://doi.org/10.48550/arXiv.1805.03148
Journal reference: Jacob Bekenstein: The Conservative Revolutionary, World Scientific Publishing, 2019, pp. 271-299
Related DOI: https://doi.org/10.1142/9789811203961_0021

Submission history

From: Markku Oksanen [view email]
[v1] Tue, 8 May 2018 16:37:41 UTC (32 KB)
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