Scaling, bounds, and inequalities for the noninteracting density functionals at finite temperature

  title={Scaling, bounds, and inequalities for the noninteracting density functionals at finite temperature},
  author={James W. Dufty and Samuel B. Trickey},
  journal={Physical Review B},
Finite-temperature density functional theory requires representations for the internal energy, entropy, and free energy as functionals of the local density field. A central formal difficulty for an orbital-free representation is the construction of the corresponding functionals for noninteracting particles in an arbitrary external potential. That problem is posed here in the context of the equilibrium statistical mechanics of an inhomogeneous system. The density functionals are defined and… Expand

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