Sparsity of Hawking Radiation in $D+1$ Space-Time Dimensions Including Particle Masses

Understand

Hawking radiation from an evaporating black hole has often been compared to black body radiation.

• However, this comparison misses an important feature of Hawking radiation: Its low density of states.
• This can be captured in an easy to calculate, heuristic, and semi-analytic measure called "sparsity".
• In this letter we shall present both the concept of sparsities and its application to $D+1$-dimensional Tangherlini black holes and their evaporation.