Modified Gravity Theories From the Barrow Hypothesis: Quantum Gravity

Ankit Anand, Ruben Campos Delgado, Ankit. Anand and Ruben. Delgado. Modified Einstein equations with the Jacobson’s approach. 3 Quantum gravitational corrections to the Schwarzschild metric. 4 Conclusions and References. The paper is available on arxiv.org/2413687.


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:::info Authors:

(1) Ankit Anand, Department of Physics, Indian Institute of Technology Madras, Chennai 600 036, India;

(2) Ruben Campos Delgado, Bethe Center for Theoretical Physics, Physikalisches Institut der Universit¨at Bonn, Nussallee 12, 53115 Bonn, Germany.

:::

Abstract and 1 Introduction

2 Modified Einstein equations with the Jacobson’s approach

3 Quantum gravitational corrections to the Schwarzschild metric

4 Conclusions and References

3 Quantum gravitational corrections to the Schwarzschild metric

In order to solve (2.9), we start with the Ansatz

\

\ where

\

\ The Ricci scalar has the structure

\

\

Case I

\ We compare our solutions with the ones of Xiao and Tian [32], which read

\

\ With all these terms the final expression for the metric is

\

\ which generalizes the result of [32]. Notice that the coefficients (3.14) are formally divergent, but the solutions (3.15)-(3.17) are finite.

Case II

\ We compare now our solutions with the ones of Calmet and Kuipers, [22], which read

\

\ With all these terms the final expression for the metric is

\

\ hich generalizes the result of [22]. Again, notice that the coefficients (3.23) are formally divergent, but the solutions (3.24)-(3.26) are finite.

\

:::info This paper is available on arxiv under CC BY 4.0 Deed license.

:::

\


This content originally appeared on HackerNoon and was authored by Hypothesis


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