Thermodynamical description of the interacting new agegraphic dark energy

Understand

We describe the thermodynamical interpretation of the interaction between new agegraphic dark energy and dark matter in a non-flat universe.

• When new agegraphic dark energy and dark matter evolve separately, each of them remains in thermodynamic equilibrium.
• As soon as an interaction between them is taken into account, their thermodynamical interpretation changes by a stable thermal fluctuation.
• We obtain a relation between the interaction term of the dark components and this thermal fluctuation.