• Corpus ID: 235436259

Density-potential functional theory for fermions in one dimension

  title={Density-potential functional theory for fermions in one dimension},
  author={Martin Trappe and Jun Hao Hue and Berthold-Georg Englert},
We showcase the advantages of orbital-free density-potential functional theory (DPFT), a more flexible variant of Hohenberg–Kohn density functional theory. DPFT resolves the usual trouble with the gradientexpanded kinetic energy functional by facilitating systematic semiclassical approximations in terms of an effective potential energy that incorporates all interactions. With the aid of two systematic approximation schemes we demonstrate that DPFT is not only scalable, universally applicable in… 
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