The thermodynamics of black holes: from Penrose process to Hawking radiation

In 1969, Roger Penrose proposed a mechanism to extract rotational energy from Kerr black hole. With this, he inspired two lines of investigation in the years after. On one side, process, as it became known, allowed comparison between black-hole mechanics and thermodynamics. other, opened path quantum description those objects. This paper provides novel take on events that led rise thermodynamic theory holes, taking starting point process. It studies evolution research conducted independently by Western Soviet physicists topic, culminating Stephen Hawking’s groundbreaking discovery holes should radiate.