Kinetic energy constructed from exact gradient expansion of second order in uniform gas limit

Abhishek Bhattacharjee, Hemanadhan Myneni, Manoj K. Harbola +1

Orbital-Free Density Functional Theory (OFDFT) has re-emerged as a viable alternative to Kohn-Sham DFT, driven by recent advances in kinetic energy density functionals (KEDFs). Non…