Can we observe fuzzballs or firewalls?

Guo, Bin; Hampton, Shaun; Mathur, Samir D.

doi:10.1007/jhep07(2018)162

Title: Can we observe fuzzballs or firewalls?

Journal Article · Wed Jul 25 00:00:00 EDT 2018 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep07(2018)162· OSTI ID:1499185

Guo, Bin ^[1]; Hampton, Shaun ^[1]; Mathur, Samir D. ^[1]

The Ohio State Univ., Columbus, OH (United States). Dept. of Physics

In the fuzzball paradigm the information paradox is resolved because the black hole is replaced by an object with no horizon. One may therefore ask if observations can distinguish a traditional hole from a fuzzball. We give arguments for why the fuzzball structure should lie close to the horizon; i.e., it should be a ‘tight’ fuzzball. We find: (a) It is very difficult to reflect quanta off the surface of such a fuzzball, mainly because geodesics starting near the horizon radius cannot escape to infinity unless their starting direction is very close to radial. (b) If infalling particles interact with the emerging radiation before they are engulfed by the horizon, then we say that we have a ‘firewall behavior’. Here, we consider several types of interactions, but find no evidence for firewall behavior in any theory that obeys causality. (c) Photons with wavelengths larger than the black hole radius can be scattered off the emerging radiation, but a very small fraction of the backscattered photons will be able to escape back to infinity.

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Research Organization:: The Ohio State Univ., Columbus, OH (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: SC0011726

OSTI ID:: 1499185

Journal Information:: Journal of High Energy Physics (Online), Vol. 2018, Issue 7; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 48 works

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