Phenomenological aspects of black holes beyond general relativity

By R. Carballo-Rubio, F. Filippo, Stefano Liberati, Matt Visser. Physical Review D, 2018

147 citations recorded by the source corpus.

While singularities are inevitable in the classical theory of general relativity, it is commonly believed that they will not be present when quantum gravity effects are taken into account in a consistent framework. In particular, the structure of black holes should be modified in frameworks beyond general relativity that aim at regularizing singularities. Being agnostic on the nature of such theory, in this paper we classify the possible alternatives to classical black holes and provide a minimal set of phenomenological parameters that describe their characteristic features. The introduction of these parameters allows us to study, in a largely model-independent manner and taking into account all the relevant physics, the phenomenology associated with these quantum-modified black holes. We perform an extensive analysis of different observational channels and obtain the most accurate characterization of the viable constraints that can be placed using current data. Aside from facilitating a critical revision of previous work, this analysis also allows us to highlight how different channels are capable of probing certain features but are oblivious to others, and pinpoint the theoretical aspects that should be addressed in order to strengthen these tests.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/7a6d2a9509095d21aa687963cbf68412e66a63e3

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Paolo Pani
2. V. Cardoso
3. Stefano Liberati
4. Matt Visser
5. Alex Simpson
6. J. Mazza
7. Edgardo Franzin
8. R. Brito

In Nuclear and High Energy Physics

1. Paolo Pani
2. V. Cardoso
3. Stefano Liberati
4. Alex Simpson
5. Matt Visser
6. J. Mazza
7. Edgardo Franzin
8. R. Brito

Citations in the corpus

• Testing the nature of dark compact objects: a status report (2019, background): “quantum gravity A nonexhaustive summary of possible self-gravitating compact objects is shown in Table 1. Dierent objects arise in dierent contexts. We refer the reader to specic works (e.g., Ref. [108]) for a more comprehensive review of the models. Model Formation Stability EM signatures GWs Fluid”
• Black-bounce to traversable wormhole (2018, background): “egular black hole geometries within the framework of general relativity, it pays to compile examples of various metrics of interest, and provide thorough analyses of their phenomenological properties [12,13]. As such, we propose the following candidate regular black hole specied by the spacetime met”
• A novel family of rotating black hole mimickers (2021, background): “By studying the phenomenology of suitably constructed effective geometries — hopes are — one may get insight into the process whereby the singularity is regularised and, therefore, also into the quantum gravity theory responsible for it [2].”