Approaching the event horizon of a black hole

TL;DR

This paper discusses the paradox of black hole event horizons, suggesting that due to Hawking radiation, particles cannot truly cross the horizon before evaporation occurs, challenging classical notions.

Contribution

It introduces a perspective that Hawking radiation prevents particles from crossing the event horizon in finite external time, impacting black hole physics understanding.

Findings

Freely falling particles take infinite external time to reach the horizon.

Black holes evaporate via Hawking radiation in finite time.

Particles would evaporate at the horizon, not pass through.

Abstract

It is argued that it takes an infinite amount of external time for a freely falling test particle to reach the event horizon of a classical black hole (which happens in finite faller time), and that in this time the black hole would have evaporated due to Hawking radiation; so the freely falling test particle would itself evaporate at the event horizon, and so not pass through.