Dark Energy, Black Hole Entropy, and the First Precision Measurement in Quantum Gravity

Understand

The two apparently distinct phenomena of dark energy (or late-time cosmic acceleration) and quantum gravity dominate physics on extremely low, and extremely high energies, but do not seem to have any apparent empirical connection.

• Nevertheless, the two have a theoretical connection, through the cosmological constant problem.
• I argue that the finite temperature quantum gravitational corrections to black hole entropy yields a pressure for the gravitational vacuum (or gravitational aether).
• Assuming that the relative corrections are linear in horizon temperature (i.e.