Symbolic regression rediscovers the exact von Weizsäcker kinetic-energy functional for one electron and Thomas-Fermi-like variants for many electrons in 1D, while showing semi-local forms fail for few-electron systems.
Electronic- structure methods for materials design,
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1D Kinetic Energy Density Functionals learned with Symbolic Regression
Symbolic regression rediscovers the exact von Weizsäcker kinetic-energy functional for one electron and Thomas-Fermi-like variants for many electrons in 1D, while showing semi-local forms fail for few-electron systems.