Unified First Law and Thermodynamics of Dynamical Black Hole in n-dimensional Vaidya Spacetime

Understand

As a simple but important example of dynamical black hole, we analysis the dynamical black hole in $n$-dimensional Vaidya spacetime in detail.

• We investigated the thermodynamics of field equation in $n$-dimensional Vaidya spacetime.
• The unified first law was derived in terms of the methods proposed by Sean A Hayward.
• The first law of dynamical black hole was obtained by projecting the unified first law along the trapping horizon.