Entanglement and corrections to Bekenstein-Hawking entropy

Understand

In this talk, we focus on the corrections to Bekenstein-Hawking entropy by associating it with the entanglement between degrees of freedom inside and outside the horizon.

• Using numerical techniques, we show that the corrections proportional to fractional power of area result when the field is in a superposition of ground and excited states.
• We explain this result by identifying that the degrees of freedom contributing to such corrections are different from those contributing to Bekenstein-Hawking entropy.