The Quasi-localized Einstein and M{\o}ller Energy Complex as Thermodynamic Potentials
In this article, I obtain the Einstein and M{\o}ller energy complex in PG coordinates. According to the difference of energy within radius $r$ between Einstein and M{\o}ller prescription, I could present the difference of energy within radius $r$ like the fomula of Legendre transformation and propose that the M{\o}ller and Einstein energy complex play the role of internal energy and Helmholtz energy in thermodynamics.