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physics.comp-ph2025
Random Phase Approximation Correlation Energy using Real-Space Density Functional Perturbation Theory
Boqin Zhang, Shikhar Shah, John E. Pask +2
We present a real-space method for computing the random phase approximation (RPA) correlation energy within Kohn-Sham density functional theory, leveraging the low-rank nature of t…
physics.comp-ph2025
GPU acceleration of hybrid functional calculations in the SPARC electronic structure code
Xin Jing, Abhiraj Sharma, John E. Pask +1
We present a GPU-accelerated version of the real-space SPARC electronic structure code for performing hybrid functional calculations in generalized Kohn-Sham density functional the…
physics.comp-ph2024
Accuracy of Kohn-Sham density functional theory for warm- and hot-dense matter equation of state
Phanish Suryanarayana, Arpit Bhardwaj, Xin Jing +2
We study the accuracy of Kohn-Sham density functional theory (DFT) for warm- and hot-dense matter (WDM and HDM). Specifically, considering a wide range of systems, we perform accur…