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Two faces of Hawking radiation and thin-shell emission: pair-creation vs. tunneling

by Dong-han Yeom

Submission summary

As Contributors: Dong-han Yeom
Preprint link: scipost_202010_00007v1
Date accepted: 2020-12-09
Date submitted: 2020-10-09 11:04
Submitted by: Yeom, Dong-han
Submitted to: SciPost Physics Proceedings
Proceedings issue: 4th International Conference on Holography, String Theory and Discrete Approach in Hanoi
Academic field: Physics
Specialties:
  • Gravitation, Cosmology and Astroparticle Physics
Approach: Theoretical

Abstract

We first revisit Hartle and Hawking's path integral derivation of Hawking radiation. In the first point of view, we interpret that a particle-antiparticle pair is created and the negative energy antiparticle falls into the black hole. On the other point of view, a particle inside the horizon, or beyond the Einstein-Rosen bridge, tunnels to outside the horizon, where this computation requires the analytic continuation of the time. These two faces of the Hawking radiation process can be extended to not only particles but also fields. As a concrete example, we study the thin-shell tunneling process; by introducing the antishell as a negative tension shell, we can give the consistent interpretation for two pictures, where one is a tunneling from inside to outside the horizon using instantons, while the other is a shell-antishell pair-creation. This shows that the Euclidean path integral indeed carries vast physical implications not only for perturbative, but also for non-perturbative processes.

Published as SciPost Phys. Proc. 4, 004 (2021)



Submission & Refereeing History

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Submission scipost_202010_00007v1 on 9 October 2020

Reports on this Submission

Anonymous Report 1 on 2020-11-12 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:scipost_202010_00007v1, delivered 2020-11-12, doi: 10.21468/SciPost.Report.2182

Report

This paper firstly revisits the problem of Hawking radiations in terms of two different approaches, namely, via a particle tunneling from inside to outside horizon and particle-antiparticle production where the anti-particle falls into the horizon by carrying negative energy. Later the extension of the above idea is considered to the fields with an example of the matter scalar fields in the case of a thin shell, where the author provides some justifications to establish the similar correspondence.
The version of the manuscript is clearly written, and contains enough interesting results.
I recommend the present paper to be published

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