Selected Honorable Mention EssaysNo Access

THE TWO FACES OF HAWKING RADIATION

MATTEO SMERLAK

Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Am Mühlenberg 1, D-14476 Golm, Germany

https://doi.org/10.1142/S0218271813420194Cited by:7 (Source: Crossref)

Abstract

What happens when Alice falls into a black hole? In spite of recent challenges by Almheiri et al. — the so-called "firewall" hypothesis —, the consensus on this question tends to remain "nothing special." Here I show that, besides the standard Hawking outgoing modes, Alice records at horizon-crossing a quasi-thermal spectrum of ingoing modes, whose temperature and intensity diverges as her Killing energy E goes to zero. I suggest that this effect can be thought of in terms a horizon-infinity duality, which relates the perception of near-horizon and asymptotic geodesic observers — the two faces of Hawking radiation.

This essay received an honorable mention in the 2013 Essay Competition of the Gravity Research Foundation.

Keywords:

PACS: 04.70.Dy, 04.62.+v

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